This list compares various sizes of positive numbers, including counts of things, dimensionless numbers and probabilities. An order of magnitude is the class of scale or magnitude of any amount, where each class contains values of a fixed ratio to the class preceding it. ...
Categories: Orders of magnitude (area) ...
To help compare different orders of magnitude, the following list describes various angular velocity levels between 1Ã—10âˆ’7 radÂ·sâˆ’1 and 1Ã—107 radÂ·sâˆ’1. ...
This is a list of orders of magnitude for data (or information), measured in bits. ...
External links Conversion Calculator for Units of Density Categories: Orders of magnitude (density) | Orders of magnitude ...
To help compare different orders of magnitude, the following list describes various frequencies. ...
Categories: | ...
Category: ...
This page lists examples of the power in watts produced by various different sources of energy. ...
1 At earth mean sea level. ...
This is a table of specific heat capacities by magnitude. ...
To help compare different orders of magnitude, the following list describes various speed levels between 1. ...
Categories: Orders of magnitude (temperature) ...
The pages linked in the right-hand column contain lists of times that are of the same order of magnitude (power of ten). ...
The pages linked in the right-hand column contain lists of volumes that are of the same order of magnitude (power of ten). ...
Conversion of units refers to conversion factors between units of measurement. ...
The definition, agreement and practical use of units of measurement have played a crucial role in human endeavour from early ages up to this day. ...
Cover of brochure The International System of Units. ...
The SI system of units defines seven SI base units: physical units defined by an operational definition. ...
SI derived units are part of the SI system of measurement units and are derived from the seven SI base units. ...
An SI prefix is a prefix that can be applied to an SI unit to form a decimal multiple (supramultiple or submultiple). ...
In physics, Planck units are physical units of measurement defined exclusively in terms of the five universal physical constants shown in the table below in such a manner that all of these physical constants take on the numerical value of one when expressed in terms of these units. ...
A number is an abstract entity that represents a count or measurement. ...
In dimensional analysis, a dimensionless number (or more precisely, a number with the dimensions of 1) is a pure number without any physical units. ...
This article does not cite its references or sources. ...
## Smaller than 10^{-36}
*Comp - IEEE floating-point number* 5×10^{-324} is approximately equal to the smallest positive non-zero value that can be represented by a double-precision IEEE floating-point value. *Comp - IEEE floating-point number* 1.4012985×10^{-45} is approximately equal to the smallest positive non-zero value that can be represented by a single-precision IEEE floating-point value. The IEEE Standard for Binary Floating-Point Arithmetic (IEEE 754) is the most widely-used standard for floating-point computation, and is followed by many CPU and FPU implementations. ...
The IEEE Standard for Binary Floating-Point Arithmetic (IEEE 754) is the most widely-used standard for floating-point computation, and is followed by many CPU and FPU implementations. ...
## 10^{-36} (0.000000000000000000000000000000000001)
## 10^{-33} (0.000000000000000000000000000000001)
## 10^{-30} (0.000000000000000000000000000001)
## 10^{-27} (0.000000000000000000000000001)
## 10^{-24} (0.000000000000000000000001) ISO: yocto - y Yocto (symbol y) is a SI prefix in the SI system of units denoting a factor of 10-24. ...
## 10^{-21} (0.000 000 000 000 000 000 001, short scale: One sextillionth, long scale: One trilliardth) Long scale is the English translation of the French term échelle longue, which designates a system of numeric names in which the word billion means a million millions. ...
Long scale is the English translation of the French term échelle longue, which designates a system of numeric names in which the word billion means a million millions. ...
ISO: zepto - z Zepto (symbol z) is a prefix in the SI system of units denoting a factor of 10-21. ...
## 10^{-18} (0.000 000 000 000 000 001, short scale: One quintillionth, long scale: One trillionth) Long scale is the English translation of the French term échelle longue, which designates a system of numeric names in which the word billion means a million millions. ...
Long scale is the English translation of the French term échelle longue, which designates a system of numeric names in which the word billion means a million millions. ...
ISO: atto - a Atto- (symbol a) is an SI prefix to a unit and means that it is 10-18 times this unit. ...
## 10^{-15} (0.000 000 000 000 001, short scale: One quadrillionth, long scale: One billiardth) Long scale is the English translation of the French term échelle longue, which designates a system of numeric names in which the word billion means a million millions. ...
Long scale is the English translation of the French term échelle longue, which designates a system of numeric names in which the word billion means a million millions. ...
ISO: femto - f Femto is an SI prefix (symbol f) in the SI system of units denoting a factor of 10âˆ’15 or 0. ...
## 10^{-12} (0.000 000 000 001, short scale: One trillionth, long scale: One billionth) Long scale is the English translation of the French term échelle longue, which designates a system of numeric names in which the word billion means a million millions. ...
Long scale is the English translation of the French term échelle longue, which designates a system of numeric names in which the word billion means a million millions. ...
ISO: pico - p For other meanings of Pico see Pico (disambiguation) Pico (symbol p) is a prefix in the SI system of units denoting a factor of 10-12. ...
*Mathematics:* Roughly the chances of getting heads 40 times in a row on a fair coin. ## 10^{-9} (0.000 000 001; short scale: one billionth; long scale: one milliardth) Short scale is the English translation of the French term Ã©chelle courte, which designates a system of numeric names in which the word billion means a thousand millions. ...
Short scale is the English translation of the French term Ã©chelle courte, which designates a system of numeric names in which the word billion means a thousand millions. ...
ISO: nano - n Nano is a noun Name for an Apple Brand Ipod available in 2GB and 4GB memory sizes whose purpose is for storing and playing music. ...
*Mathematics - Lottery:* The odds of winning the Grand Prize (matching all 6 numbers) in the US Powerball Multistate Lottery, with a single ticket, under the rules as of 2006, are 146,107,962 to 1 against, for a probability of 7×10^{-9}. *Mathematics - Lottery:* The odds of winning the Jackpot (matching the 6 main numbers) in the UK National Lottery, with a single ticket, under the rules as of 2003, are 13,983,816 to 1 against, for a probability of 7×10^{-8}. Lottery (U.S.) Here is a breakdown of lotteries in the United States by each state. ...
2006 is a common year starting on Sunday of the Gregorian calendar. ...
A lottery is a popular form of gambling which involves the drawing of lots for a prize. ...
2003 is a common year starting on Wednesday of the Gregorian calendar, and also: The International Year of Freshwater The European Disability Year Events January events January 1 Luíz Inácio Lula Da Silva becomes the 37th President of Brazil. ...
## 10^{-6} (0.000 001; one millionth) One millionth is equal to 0. ...
ISO: micro - μ Look up micro- in Wiktionary, the free dictionary. ...
*Mathematics - Poker:* The odds of being dealt a royal flush in poker are 649,739 to 1 against, for a probability of 1.5 × 10^{-6} *Mathematics - Poker:* The odds of being dealt a straight flush (other than a royal flush) in poker are 72,192 to 1 against, for a probability of 1.4 × 10^{-5} *Mathematics - Poker:* The odds of being dealt a four of a kind in poker are 4,164 to 1 against, for a probability of 2.4 × 10^{-4} Poker Room at the Trump Taj Mahal, Atlantic City, New Jersey Poker is a card game, the most popular of a class of games called vying games, in which players with fully or partially concealed cards make wagers into a central pot, which is awarded to the player or players...
A royal flush of hearts A royal flush is a poker hand containing an ace, king, queen, jack, and a 10 of the same suit (for example Aâ™ Kâ™ Qâ™ Jâ™ 10â™ ). Because it is both a straight (having five cards in sequential rank) and a flush (having five cards...
A straight flush is a poker hand such as Q♠ J♠ 10♠ 9♠ 8♠, which contains five cards in sequence, all of the same suit. ...
Four of a kind is a poker hand such as 9♣ 9♠ 9♦ 9♥ J♥, which contains four cards of one rank, and an unmatched card. ...
## 10^{-3} (0.001; one thousandth) This list compares various sizes of positive numbers, including counts of things, dimensionless numbers and probabilities. ...
ISO: milli - m Milli (symbol m) is an SI prefix in the SI system of units denoting a factor of 10-3, or 1/1,000. ...
*Mathematics - Poker:* The odds of being dealt a full house in poker are 693 to 1 against, for a probability of 1.4 × 10^{-3} *Mathematics - Poker:* The odds of being dealt a flush in poker are 508 to 1 against, for a probability of 1.9 × 10^{-3} *Mathematics - Poker:* The odds of being dealt a straight in poker are 254 to 1 against, for a probability of 4 × 10^{-3} *Phys:* α = 0.007 297 352 533(27), the fine structure constant Two examples of a full house: The three kings on the right beats the three queens on the left A full house is a poker hand such as 3â™£ 3â™ 3â™¦ 6â™£ 6â™¥, which contains three matching cards of one rank, plus two matching cards of another rank. ...
A flush is a poker hand such as Qâ™£ 10â™£ 7â™£ 6â™£ 4â™£, which contains five cards of the same suit, not in rank sequence. ...
A straight is a poker hand such as Q♣ J♠ 10♠ 9♥ 8♥, which contains five cards of sequential rank, of varying suits. ...
The fine-structure constant or Sommerfeld fine-structure constant, usually denoted , is the fundamental physical constant characterizing the strength of the electromagnetic interaction. ...
## 10^{-2} (0.01; one hundredth) In mathematics or arithmetic, a hundredth is one part of a unit or one divided equally into one hundred parts. ...
ISO: centi - c Centi (symbol c) is a SI prefix in the SI system of units denoting a factor of 10-2, or 1/100. ...
*BioMed - HIV:* About 1.2% of all 15–49 year-old humans were infected with HIV at the end of 2001 *Mathematics - Lottery:* The odds of winning any prize in the UK National Lottery, with a single ticket, under the rules as of 2003, are 54 to 1 against, for a probability of about 0.018 (1.8%) *Mathematics - Poker:* The odds of being dealt a three of a kind in poker are 46 to 1 against, for a probability of 0.021 (2.1%) *Mathematics - Lottery:* The odds of winning any prize in the US Powerball Multistate Lottery, with a single ticket, under the rules as of 2006, are 36.61 to 1 against, for a probability of 0.027 (2.7%) *Mathematics - Poker:* The odds of being dealt two pair in poker are 20 to 1 against, for a probability of 0.048 (4.8%). Human immunodeficiency virus or HIV is a retrovirus that causes Acquired Immunodeficiency Syndrome (AIDS), a condition in which the immune system begins to fail, leading to life-threatening opportunistic infections. ...
2001 is a common year starting on Monday of the Gregorian calendar, and also: The International Year of the Volunteer The United Nations Year of Dialogue Among Civilizations Events January January 1 - A black monolith measuring approximately nine feet tall appears in Seattles Magnuson Park, placed by an anonymous...
A lottery is a popular form of gambling which involves the drawing of lots for a prize. ...
2003 is a common year starting on Wednesday of the Gregorian calendar, and also: The International Year of Freshwater The European Disability Year Events January events January 1 Luíz Inácio Lula Da Silva becomes the 37th President of Brazil. ...
Three of a kind is a poker hand such as 2â™¦ 2â™ 2â™¥ Kâ™ 6â™ , which contains three cards of the same rank, plus two unmatched cards. ...
Lottery (U.S.) Here is a breakdown of lotteries in the United States by each state. ...
2006 is a common year starting on Sunday of the Gregorian calendar. ...
A poker hand such as Jâ™¦ Jâ™£ 4â™£ 4â™ 9â™ , which contains two cards of the same rank, plus two cards of another rank (that match each other but not the first pair), plus one unmatched card, is called two pair. ...
## 10^{-1} (0.1; one tenth) In mathematics, arithmetic or plain old numbers a tenth is one part of a unit or one divided equally into ten parts. ...
ISO: deci - d deci- (symbol d) is a prefix in the SI system of units denoting a factor of 10âˆ’1 (1/10). ...
*Mathematics - Poker:* The odds of being dealt only one pair in poker are about 5 to 2 against (2.37 to 1), for a probability of 0.42 (42%). *Mathematics - Poker:* The odds of being dealt no pair in poker are nearly 1 to 2, for a probability of about 0.5 (50%) One pair is a poker hand such as 4♥ 4♠ K♠ 10♦ 5♠, which contains two cards of the same rank, plus three unmatched cards. ...
A no pair hand is a poker hand such as K♥ J♣ 8♣ 7♦ 3♠, in which no two cards have the same rank, the five cards are not in sequence, and the five cards are not all the same suit. ...
## 10^{0} (1; one) Look up one in Wiktionary, the free dictionary. ...
The golden section is a line segment sectioned into two according to the golden ratio. ...
e is the unique number such that the value of the derivative (slope of a tangent line) of f (x)=ex for any value of x is equal to the value of f (x). ...
The natural logarithm, formerly known as the hyperbolic logarithm, is the logarithm to the base e, where e is equal to 2. ...
When a circles diameter is 1, its circumference is Ï€. The mathematical constant Ï€ is an irrational real number, approximately equal to 3. ...
Circle illustration In Euclidean geometry, a circle is the set of all points in a plane at a fixed distance, called the radius, from a fixed point, the centre. ...
The Magical Number Seven, Plus or Minus Two: Some Limits on Our Capacity for Processing Information is a 1956 paper by the cognitive psychologist George A. Miller. ...
Cognitive science is usually defined as the scientific study either of mind or of intelligence (e. ...
George A. Miller (born February 3 1920) is a famous professor of psychology at Princeton University, whose most famous work was The Magical Number Seven, Plus or Minus Two: Some Limits on our Capacity for Processing Information, which was published in 1956 in In the linguistics community, Miller is well...
In cognitive psychology, working memory is a theoretical framework that refers to structures and processes used for temporarily storing and manipulating information. ...
Look up eight in Wiktionary, the free dictionary. ...
The eight planets and three dwarf planets of the Solar System. ...
Major features of the Solar System (not to scale): The Sun, the eight planets, the asteroid belt containing the dwarf planet Ceres, outermost there is the dwarf planet Pluto (the dwarf planet Eris not shown), and a comet. ...
## 10^{1} (10; ten) 10 (ten) is an even natural number following 9 and preceding 11. ...
ISO: deca - da Look up deca- in Wiktionary, the free dictionary. ...
Fingers of the human left hand The finger is any of the digits of the hand in humans and other species such as the great apes. ...
Human right hand The hands (med. ...
The Latin alphabet, also called the Roman alphabet, is the most widely used alphabetic writing system in the world today. ...
The English language is a West Germanic language that originates in England. ...
## 10^{2} (100; hundred) 100 (one hundred) (the Roman numeral is C for centum) is the natural number following 99 and preceding 101. ...
ISO: hecto - h Hecto (symbol h) is a SI prefix in the SI system of units denoting a factor of 102 (100). ...
There are 95 printable ASCII characters, numbered 32 to 126. ...
The United Nations (UN) is an international organization whose stated aims are to facilitate co-operation in international law, international security, economic development, and social equity. ...
2006 is a common year starting on Sunday of the Gregorian calendar. ...
## 10^{3} (1 000; thousand) Cardinal 1000 one thousand Ordinal 1000th Numeral system Factorization Prime Divisor(s) Roman numeral Unicode symbol(s) , , Greek Prefix chilia Latin Prefix milli Binary 1111101000 Octal 1750 Duodecimal 6B4 Hexadecimal 3E8 1000 (one thousand) is the natural number following 999 and preceding 1001. ...
ISO: kilo - k Kilo (symbol: k) is a prefix in the SI system denoting 103 or 1000. ...
*Lang:* 2000–3000 letters on a typical typed page of text *BioMed:* the DNA of the simplest viruses has some 5000 base pairs. *Lang:* There are about 6500 mutually unintelligible languages and dialects. The structure of part of a DNA double helix. ...
Groups I: dsDNA viruses II: ssDNA viruses III: dsRNA viruses IV: (+)ssRNA viruses V: (-)ssRNA viruses VI: ssRNA-RT viruses VII: dsDNA-RT viruses A virus (Latin, poison) is a microscopic particle that can infect the cells of a biological organism. ...
## 10^{4} (10 000; ten thousand) Ten thousand (10,000) is the natural number following 9999 and preceding 10,001. ...
*BioMed:* Each neuron in the human brain is estimated to connect to 10,000 others *Lang:* There are 20,000–40,000 distinct Chinese characters, depending on how you count them *BioMed:* Each human being is estimated to have 30,000 to 40,000 genes *Records:* As of July 2004, the largest number of decimal places of π that have been recited from memory - > 42000 *Mathematics:* 65537 is the largest known Fermat prime Drawing by Santiago RamÃ³n y Cajal of neurons in the pigeon cerebellum. ...
æ¼¢å— / æ±‰å— Chinese character in HÃ nzÃ¬, kanji, hanja, HÃ¡n Tá»±. Red in Simplified Chinese. ...
This stylistic schematic diagram shows a gene in relation to the double helix structure of DNA and to a chromosome (right). ...
2004 is a leap year starting on Thursday of the Gregorian calendar. ...
When a circles diameter is 1, its circumference is Ï€. The mathematical constant Ï€ is an irrational real number, approximately equal to 3. ...
In mathematics, a Fermat number, named after Pierre de Fermat who first studied them, is a positive integer of the form where n is a nonnegative integer. ...
## 10^{5} (100 000; one hundred thousand) One hundred thousand (100000) is the natural number following 99999 and preceding 100001. ...
Young Girl Fixing her Hair, by Sophie Gengembre Anderson Hair is a filamentous outgrowth of dead cells from the skin, found only in mammals. ...
2005 is a common year starting on Saturday of the Gregorian calendar. ...
James Joyce James Augustine Aloysius Joyce (Irish Seamus Seoighe; 2 February 1882 â€“ 13 January 1941) was an Irish writer and poet, widely considered to be one of the most influential writers of the 20th century. ...
Ulysses is a 1922 novel by James Joyce, first serialized in parts in the American journal The Little Review from 1918 to 1920, and published in its entirety by Sylvia Beach on February 2, 1922, in Paris. ...
The New Oxford Dictionary of English (often abbreviated to NODE) is an English language dictionary first published in 1998 by the Oxford University Press. ...
The English language is a West Germanic language that originates in England. ...
A word is a unit of language that carries meaning and consists of one or more morphemes which are linked more or less tightly together, and has a phonetical value. ...
One possible solution The eight queens puzzle is the problem of putting eight chess queens on an 8Ã—8 chessboard such that none of them is able to capture any other using the standard chess queens moves. ...
War and Peace (Russian: Ð’Ð¾Ð¹Ð½Ð° Ð¸ Ð¼Ð¸Ñ€, Vojna i mir; in original orthography: Ð’Ð¾Ð¹Ð½Ð° Ð¸ Ð¼Ð¸Ñ€ÑŠ, Vojna i mir) is an epic novel by Leo Tolstoy, first published from 1865 to 1869 in Russki Vestnik, which tells the story of Russian society during the Napoleonic Era. ...
freedb is a database of compact disc track listings where all the content is under the GNU General Public License. ...
2005 is a common year starting on Saturday of the Gregorian calendar. ...
## 10^{6} (1 000 000; 1 million) One million (1000000), one thousand thousand, is the natural number following 999999 and preceding 1000001. ...
ISO: mega - M mega- (symbol M) is an SI prefix in the SI system of units denoting a factor of 106, i. ...
*Info:* Currently there are 1,538,616 articles and 3,056,774 registered users in the English Wikipedia *Geo/Comp - Geographic places:* The NIMA GEOnet Names Server contains approximately 3.88 million named geographical features outside the United States, with 5.34 million names. The USGS Geographic Names Information System claims to have almost 2 million physical and cultural geographic features within the United States. *BioMed - Species:* The World Resources Institute claims that approximately 1.4 million species have been named, out of an unknown number of total species (estimates range between 2 and 100 million species). *Mathematics - Chess:* There are 2 279 184 solutions to n-Queens Problem for n = 15 *Mathematics - Playing cards:* There are 2 598 960 different 5-card poker hands that can be dealt from a standard 52-card deck. *Info - Web sites:* as of July 2003, the Netcraft web survey estimates that there are 42 million distinct web sites *Info - Books:* The British Library claims that it holds over 150 million items. The Library of Congress claims that it holds approximately 119 million items. *See The Gutenberg Galaxy* *Mathematics:* 14,772,512 solutions to n-Queens Problem for n = 16 *Mathematics:* 95,815,104 solutions to n-Queens Problem for n = 17 *Mathematics:* 215,000,000 - The approximate number of mathematical constants collected on the Plouffe's Inverter as of August 2005 [2] *Mathematics:* 275,305,224 is the number of 5x5 magic squares, not counting rotations and reflections. This result was found in 1973 by Richard Schroeppel. It is the third 91768409-gonal number. *Geo:* approx. 402,000,000 native speakers of English *Astro - Cataloged stars:* The Guide Star Catalog II has entries on 998,402,801 distinct astronomical objects The CAPITALIZED version of Wikipedia. ...
The GEOnet Names Server (GNS) provides access to the National Geospatial-Intelligence Agencys (NGA) and the U.S. Board on Geographic Names (BGN) database of foreign geographic feature names. ...
GNIS (The Geographic Names Information System) contains name and locative information about almost two million physical and cultural features located throughout the United States of America and its Territories. ...
World Resources Institute (WRI) is an environmental think tank based in Washington, D.C. It was established by James Gustave (Gus) Speth. ...
In biology, a species is one of the basic units of biodiversity. ...
One possible solution The eight queens puzzle is the problem of putting eight chess queens on an 8Ã—8 chessboard such that none of them is able to capture any other using the standard chess queens moves. ...
A hand in poker can mean any of the following: A synonym for round, a unit of play consisting of a deal, betting, and possibly a showdown. ...
2003 is a common year starting on Wednesday of the Gregorian calendar, and also: The International Year of Freshwater The European Disability Year Events January events January 1 Luíz Inácio Lula Da Silva becomes the 37th President of Brazil. ...
British Library Ossulston St entrance, with distinctive red logo. ...
The Great Hall interior. ...
The Gutenberg Galaxy: The Making of Typographic Man (University of Toronto Press) is a 1962 book by Marshall McLuhan. ...
One possible solution The eight queens puzzle is the problem of putting eight chess queens on an 8Ã—8 chessboard such that none of them is able to capture any other using the standard chess queens moves. ...
One possible solution The eight queens puzzle is the problem of putting eight chess queens on an 8Ã—8 chessboard such that none of them is able to capture any other using the standard chess queens moves. ...
In mathematics and the mathematical sciences, a constant is a fixed, but possibly unspecified, value. ...
2005 is a common year starting on Saturday of the Gregorian calendar. ...
In recreational mathematics, a magic square of order n is an arrangement of nÂ² numbers, usually distinct integers, in a square, such that the n numbers in all rows, all columns, and both diagonals sum to the same constant. ...
1973 (MCMLXXIII) was a common year starting on Monday. ...
Richard Schroeppel is an American mathematician who discovered the number of 5x5 magic squares. ...
In mathematics, a polygonal number is a number that can be arranged as a regular polygon. ...
The English language is a West Germanic language that originates in England. ...
The Guide Star Catalog II has entries on 998,402,801 distinct astronomical objects. ...
## 10^{9} (1 000 000 000; short scale: 1 billion; long scale: 1 milliard) Short scale is the English translation of the French term Ã©chelle courte, which designates a system of numeric names in which the word billion means a thousand millions. ...
Billion may mean: 1,000,000,000 (one thousand million; ), used by most English-speaking countries (American and usual modern British meaning) 1,000,000,000,000 (one million million; ), used by most other countries outside Asia (older British meaning). ...
Short scale is the English translation of the French term Ã©chelle courte, which designates a system of numeric names in which the word billion means a thousand millions. ...
Milliard is a French-derived word meaning the number 109 (one thousand million). ...
ISO: giga - G giga- (symbol: G) is a prefix in the SI system of units denoting 109, or 1 000 000 000. ...
*Comp - Computational limit of a 32-bit CPU*: 2 147 483 647 is equal to 2^{31}−1, and as such is the largest number which can fit into a signed (two's complement) 32-bit integer on a computer, thus marking the upper computational limit of a 32-bit CPU such as Intel's Pentium-class computer chips. *BioMed - Base pairs in the genome:* approximately 3×10^{9} base pairs in the human genome *Comp - Web pages:* approximately 8×10^{9} web pages indexed by Google as of 2004 *Astro - Observable galaxies:* as of 2003 there are between 1×10^{10} and 8×10^{10} galaxies in the observable Universe *BioMed - Bacteria in the human body:* there are roughly 10^{10} bacteria in the human oral cavity [3] *BioMed - Neurons in the brain:* approximately 10^{11} neurons in the human brain *Astro - Stars in our Galaxy:* approximately 4×10^{11} stars in the Milky Way galaxy *Geo - India:* 1,065,000,000 - Approximate population of India in 2003 *Geo - China:* 1,300,000,000 - Approximate population of the People's Republic of China in 2004. *Geo - World population:* 6,378,000,000 - Estimated total mid-year population for the world in 2004. *Comp:* 4,294,967,296 - the number of bytes in 4 gibibytes; in computation, the 32-bit computers can directly access 2^{32} pieces of address space, this leads directly to the 4 gigabyte limit on main memory. *Mathematics:* 2,147,483,647 is a Mersenne prime. *Mathematics:* 2,464,195,387 is a semiprime. *Mathematics:* 4,294,967,297 is a Fermat number and semiprime. It is the smallest number of the form which is not a prime number. *Mathematics:* 27,704,267,971 and 27,704,267,977 are sexy primes. CPU redirects here. ...
Twos complement is the most popular method of representing signed integers in computer science. ...
CPU redirects here. ...
Intel Corporation (NASDAQ: INTC, SEHK: 4335), founded in 1968 as Integrated Electronics Corporation, is an American multinational corporation that is best known for designing and manufacturing microprocessors and specialized integrated circuits. ...
Pentium logo, with MMX enhancement The Pentium is a fifth-generation x86 architecture microprocessor by Intel. ...
An integrated circuit (IC) is a thin chip consisting of at least two interconnected semiconductor devices, mainly transistors, as well as passive components like resistors. ...
In molecular biology, two nucleotides on opposite complementary DNA or RNA strands that are connected via hydrogen bonds are called a base pair (often abbreviated bp). ...
In biology the genome of an organism is the whole hereditary information of an organism that is encoded in the DNA (or, for some viruses, RNA). ...
A screenshot of a web page. ...
Google, Inc. ...
2004 is a leap year starting on Thursday of the Gregorian calendar. ...
2003 is a common year starting on Wednesday of the Gregorian calendar, and also: The International Year of Freshwater The European Disability Year Events January events January 1 Luíz Inácio Lula Da Silva becomes the 37th President of Brazil. ...
NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 56,000 light years in diameter and approximately 60 million light years distant. ...
The observable Universe is a term used in cosmology to describe a ball-shaped region of space surrounding the Earth that is close enough that we might observe objects in it. ...
The mouth, also known as the buccal cavity or the oral cavity, is the opening through which an animal or human takes in food. ...
Drawing by Santiago RamÃ³n y Cajal of neurons in the pigeon cerebellum. ...
In animals, the brain, or encephalon (Greek for in the head), is the control center of the central nervous system. ...
The Milky Way (a translation of the Latin Via Lactea, in turn derived from the Greek Galaxia Kuklos; or simply the Galaxy) is a barred spiral galaxy in the Local Group, and has special significance to humanity as the location of the solar system, which is located near the Orion...
2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ...
2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ...
A gibibyte is a unit of information or computer storage. ...
In mathematics, a Mersenne number is a number that is one less than a power of two. ...
In mathematics, a semiprime (also called biprime or 2-almost prime, or pq number) is a natural number that is the product of two (not necessarily distinct) prime numbers. ...
In mathematics, a Fermat number, named after Pierre de Fermat who first studied them, is a positive integer of the form where n is a nonnegative integer. ...
In mathematics, a semiprime (also called biprime or 2-almost prime, or pq number) is a natural number that is the product of two (not necessarily distinct) prime numbers. ...
In mathematics, a prime number (or a prime) is a natural number that has exactly two (distinct) natural number divisors. ...
In mathematics, a sexy prime is a pair of prime numbers that differ by six; compare this with twin primes, pairs of prime numbers that differ by two, and cousin primes, pairs of prime numbers that differ by four. ...
## 10^{12} (1 000 000 000 000; short scale: 1 trillion; long scale: 1 billion) The numeral trillion refers to one of two number values, depending on the context of where and how it is being used. ...
Billion may mean: 1,000,000,000 (one thousand million; ), used by most English-speaking countries (American and usual modern British meaning) 1,000,000,000,000 (one million million; ), used by most other countries outside Asia (older British meaning). ...
ISO: tera - T tera- (symbol: T) is a prefix in the SI system of units denoting 1012, or 1 000 000 000 000. ...
*BioMed - Bacteria on the human body:* the surface of the human body houses roughly 10^{12} bacteria [4] *Mathematics:* 1.1 * 10^{12} - The approximate number of known non-trivial zeros of Riemann zeta function as of August 2005 [5] *BioMed - Cells in the human body:* the human body consists of roughly 10^{14} cells *Mathematics - Known digits of pi:* As of 2002, the number of known digits of pi was 1 241 100 000 000 Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ...
In mathematics, the Riemann zeta-function, named after Bernhard Riemann, is a function of significant importance in number theory, because of its relation to the distribution of prime numbers. ...
2005 is a common year starting on Saturday of the Gregorian calendar. ...
Drawing of the structure of cork as it appeared under the microscope to Robert Hooke from Micrographia which is the origin of the word cell. Cells in culture, stained for keratin (red) and DNA (green). ...
When a circles diameter is 1, its circumference is Ï€. The mathematical constant Ï€ is an irrational real number, approximately equal to 3. ...
2002 is a common year starting on Tuesday of the Gregorian calendar. ...
## 10^{15} (1 000 000 000 000 000; short scale: 1 quadrillion; long scale: 1 billiard) The quadrillion is a large number which has one of two values depending on how or where it is being used. ...
In some countries and languages using the long scale: one billiard = = one short scale quadrillion. ...
ISO: peta - P In physics and mathematics, peta- (symbol: P) is a prefix in the SI (system of units) denoting 1015, or 1 000 000 000 000 000. ...
*BioMed - Bacteria in the human body:* there are roughly 10^{15} bacteria in the human body ([6] speaks of 10^{14}), the overwhelming majority in the intestinal tract *Mathematics:* 48,988,659,276,962,496 is the fifth Taxicab number. The human body contains a large number of bacteria, most of them performing tasks that are useful or even essential to human survival. ...
In mathematics, the n-th taxicab number, typically denoted Ta(n) or Taxicab(n), is defined as the smallest number which can be expressed as a sum of two positive cubes in n distinct ways, up to order of summands. ...
## 10^{18} (1 000 000 000 000 000 000; short scale: 1 quintillion; long scale: 1 trillion) Main article: Names of large numbers A quintillion is a number written as either: a 1 followed by 18 zeros (10 to the 18th power, as used in the short scale system of numeration. ...
The numeral trillion refers to one of two number values, depending on the context of where and how it is being used. ...
ISO: exa - E In the X Window System, in the X.Org Server, EXA is a graphics acceleration architecture to make the XRender extension more usable, with only minor changes needed to adapt XFree86 video drivers written to use XAA (the XFree86 Acceleration Architecture). ...
*BioMed - Insects:* It has been estimated that the insect population of the Earth comprises roughly 10^{18} insects. **2,305,843,009,213,693,951** = Mersenne prime (2^61-1) *Comp - Computational limit of a 64-bit CPU*: 9.22×10^{18} is equal to 2^{63}-1, and as such is the largest number which can fit into a signed (two's complement) 64-bit integer on a computer. *Mathematics - Rubik's Cube:* There are 4.3×10^{19} different positions of a Rubik's Cube In mathematics, a Mersenne number is a number that is one less than a power of two. ...
CPU redirects here. ...
Twos complement is the most popular method of representing signed integers in computer science. ...
Variations of Rubiks Cubes (from left to right: Rubiks Revenge, Rubiks Cube, Professors Cube, & Pocket Cube) Rubiks Cube or (informally) Rubix Cube is a mechanical puzzle invented in 1974 by the Hungarian sculptor and professor of architecture ErnÅ‘ Rubik. ...
## 10^{21} (1 000 000 000 000 000 000 000; short scale: 1 sextillion; long scale: 1000 trillion) ISO: zetta - Z Zetta (symbol Z) is a SI prefix in the SI (system of units) denoting 1021 or 1 000 000 000 000 000 000 000. ...
*Mathematics - Sudoku:* There are 6,670,903,752,021,072,936,960 (≈6.7×10^{21}) 9×9 sudoku grids. [7] *Geo - Grains of sand:* all the world's beaches put together hold roughly 10^{23} grains of sand. [8] *Astro - Stars:* 70 sextillion, was recently given by Australian astronomers as the number of stars visible from Earth by Telescope. It could also be called *70 million trillion* or *70 billion billion*. This estimate is based on galaxy counts and star estimates: [9] *Chem:* there are roughly 6.022×10^{23} molecules in one mole of any substance (Avogadro's number) A sudoku puzzle Sudoku ), also known as Number Place or Nanpure, is a logic-based placement puzzle. ...
An astronomer or astrophysicist is a person whose area of interest is astronomy or astrophysics. ...
The Pleiades, an open cluster of stars in the constellation of Taurus. ...
Earth (IPA: , often referred to as the Earth, Terra, the World or Planet Earth) is the third planet in the solar system in terms of distance from the Sun, and the fifth largest. ...
50 cm refracting telescope at Nice Observatory. ...
In chemistry, a molecule is an aggregate of two or more atoms in a definite arrangement held together by chemical bonds [1] [2] [3] [4] [5]. Chemical substances are not infinitely divisible into smaller fractions of the same substance: a molecule is generally considered the smallest particle of a pure...
The mole (symbol: mol) is the SI base unit that measures an amount of substance. ...
Avogadros number, also called Avogadros constant (NA), named after Amedeo Avogadro, is formally defined to be the number of carbon-12 atoms in 12 grams (0. ...
## 10^{24} (1 000 000 000 000 000 000 000 000; short scale: 1 septillion; long scale: 1 quadrillion) Main article: Names of large numbers A septillion is a number written as either: a 1 followed by 24 zeros (10 to the 24th power, as used in the short scale system of numeration. ...
ISO: yotta - Y Yotta (symbol Y) is a SI prefix in the SI (system of units) denoting 1024 or 1 000 000 000 000 000 000 000 000. ...
*Computing: Yottabyte (YB) is 10*^{24} bytes. *Mathematics:* 146,361,946,186,458,562,560,000 (≈1.5×10^{24}) is the fifth unitary perfect number. *Mathematics:* 2,833,419,889,721,787,128,217,599 (≈2.8×10^{25}) is a Woodall prime. A yottabyte (derived from the SI prefix yotta-) is a unit of information or computer storage equal to one septillion (one long scale quadrillion or 1024) bytes. ...
A byte is commonly used as a unit of storage measurement in computers, regardless of the type of data being stored. ...
A unitary perfect number is an integer which is the sum of its positive proper unitary divisors, not including the number itself. ...
In mathematics, a Woodall number or Riesel number is a natural number of the form n · 2n − 1 (written Wn). ...
## 10^{27} (1 000 000 000 000 000 000 000 000 000; short scale: 1 octillion; long scale: 1000 quadrillion) *BioMed - Atoms in the human body:* the average human body contains roughly 7×10^{27} atoms, see [10] *Mathematics - Poker:* the number of unique combinations of hands and shared cards in a 10-player game of Texas Hold'em is approximately 2.117×10^{28}, see Poker probability (Texas hold 'em). Texas hold em (or simply hold em or holdem) is the most popular of the community card poker games. ...
In poker, the probability of many events can be determined by direct calculation. ...
## 10^{30} (1 000 000 000 000 000 000 000 000 000 000; short scale: 1 nonillion; long scale: 1 quintillion) *Mathematics:* The partition of 1000 is 24,061,467,864,032,622,473,692,149,727,991. A partition of U into 6 blocks: a Venn diagram representation. ...
## 10^{33} (1 000 000 000 000 000 000 000 000 000 000 000; short scale: 1 decillion; long scale: 1000 quintillion) *Mathematics:* 1,298,074,214,633,706,835,075,030,044,377,087 (≈1.3×10^{34}) is a Carol prime This page contains a list of the first 1000 prime numbers and lists of prime numbers by specific categorizations. ...
## 10^{36} (1 000 000 000 000 000 000 000 000 000 000 000 000; short scale: 1 undecillion; long scale: 1 sextillion) The standard dictionary numbers Throughout this article, exponential or scientific notation is used. ...
Main article: Names of large numbers A sextillion is a number written as either: a 1 followed by 21 zeros (10 to the 21st power, as used in the short scale system of numeration. ...
*Comp - Address range of IPv6* (2^{128}) is approximately equal to 3.4×10^{38}, and is the theoretical maximum number of internet addresses that can be allocated under the IPv6 addressing system. *Comp - IEEE floating-point number* 3.4028235×10^{38} is approximately equal to the largest value that can be represented by a single-precision IEEE floating-point value. Internet Protocol version 6 (IPv6) is a network layer IP standard used by electronic devices to exchange data across a packet-switched internetwork. ...
Internet Protocol version 6 (IPv6) is a network layer IP standard used by electronic devices to exchange data across a packet-switched internetwork. ...
The IEEE Standard for Binary Floating-Point Arithmetic (IEEE 754) is the most widely-used standard for floating-point computation, and is followed by many CPU and FPU implementations. ...
## 10^{39} to 10^{100} See names of large numbers for the names of these and larger numbers. // Throughout this article, exponential or scientific notation is used. ...
*Mathematics:* 170,141,183,460,469,231,731,687,303,715,884,105,727 (≈1.7×10^{39}) is a double Mersenne prime *Cosmology:* The Eddington-Dirac number is roughly 10^{40}. *Physics*: , the ratio of the electrical to the gravitational forces between two protons, is roughly 10^{40}. *Mathematics:* 53,694,226,297,143,959,644,031,344,050,777,763,036,004,353 (≈5.4×10^{44}) is a Pierpont prime *Mathematics:* 393,050,634,124,102,232,869,567,034,555,427,371,542,904,833 (≈3.9×10^{45}) is a Cullen prime *Geo:* About 10^{47} molecules of water on Earth *Geo:* Earth consists of roughly 10^{50} atoms *Mathematics:* 359,334,085,968,622,831,041,960,188,598,043,661,065,388,726,959,079,837 (≈3.6×10^{54}) is a prime Bell number *Mathematics:* 808,017,424,794,512,875,886,459,904,961,710,757,005,754,368,000,000,000 is order of Monster simple group *Cosmology:* 8×10^{60} is roughly the number of Planck time intervals since the universe is theorized to have been created in the Big Bang 13.7 ± 0.2 billion years ago *Mathematics:* 709,601,635,082,267,320,966,424,084,955,776,789,770,864,725,643,996,885,415,676,682,297 (≈7×10^{66}) - The largest known prime factor found by ECM factorization as of August 2005 [11] *Mathematics - Cards:* 52! = 80,658,175,170,943,878,571,660,636,856,403,766,975,289,505,440,883,277,824,000,000,000,000 (≈8×10^{67}) - the number of ways to order the cards in a 52-card deck. *Mathematics:* 475,420,437,734,698,220,747,368,027,166,749,382,927,701,417,016,557,193,662,268,716,376,935,476,241 (≈4.8×10^{72}) is a Fibonacci prime *Astro - Fundamental particles in the observable universe:* various sources estimate the total number of fundamental particles in the observable universe in the range 10^{80} to 10^{85}. However, these estimates are best regarded as guesswork. *Mathematics:* 10^{100}, a googol A double Mersenne prime in number theory is a double Mersenne number which is also prime. ...
The Dirac large numbers hypothesis refers to an observation made by Paul Dirac in 1937 relating ratios of size scales in the universe to that of force scales. ...
It has been suggested that this article or section be merged with Lorentz force. ...
This article covers the physics of gravitation. ...
In physics, force is an influence that may cause a body to accelerate. ...
For alternative meanings see proton (disambiguation). ...
A Pierpont prime is a prime number greater than 3 having the form for some integers u,v â‰¥ 0. ...
In mathematics, a Cullen number is a natural number of the form n · 2n + 1 (written Cn). ...
Water is an odourless substance that is essential to all known forms of life and is known as the universal solvent. ...
Earth (IPA: , often referred to as the Earth, Terra, the World or Planet Earth) is the third planet in the solar system in terms of distance from the Sun, and the fifth largest. ...
The Bell numbers, named in honor of Eric Temple Bell, are a sequence of integers arising in combinatorics that begins thus (sequence A000110 in OEIS): In general, Bn is the number of partitions of a set of size n. ...
In physics, the Planck time (tP), is the natural unit of time. ...
The deepest visible-light image of the cosmos, the Hubble Ultra Deep Field. ...
According to the Big Bang, the universe emerged from an extremely dense and hot state (bottom). ...
Billion may mean: 1,000,000,000 (one thousand million; ), used by most English-speaking countries (American and usual modern British meaning) 1,000,000,000,000 (one million million; ), used by most other countries outside Asia (older British meaning). ...
In number theory, the prime factors of a positive integer are the prime numbers that divide into that integer exactly, without leaving a remainder. ...
The Lenstra elliptic curve factorization is a fast probabilistic algorithm for integer factorization which employs elliptic curves. ...
2005 is a common year starting on Saturday of the Gregorian calendar. ...
The beginning of the sequence of factorials (sequence A000142 in OEIS) In mathematics, the factorial of a number n is the product of all positive integers less than or equal to n. ...
A Fibonacci prime is a Fibonacci number that is prime. ...
The observable Universe is a term used in cosmology to describe a ball-shaped region of space surrounding the Earth that is close enough that we might observe objects in it. ...
Look up Googol in Wiktionary, the free dictionary A googol is the large number 10100, that is, the digit 1 followed by one hundred zeroes. ...
Look up googol in Wiktionary, the free dictionary. ...
## Larger than 10^{100} *Chess:* Shannon number, 10^{120}, an estimation of the game-tree complexity of chess *Physics:* 8×10^{120}, ratio of the mass-energy in the observable universe to the energy of a photon with a wavelength the size of the observable universe. *Mathematics - Hist:* Asankhyeya is equal to 10^{140} in Ancient India *Xiangqi:* 10^{150}, an estimation of the game-tree complexity of xiangqi *Physics:* 4×10^{185}, approximate number of Planck volumes in the observable universe. *Comp - IEEE floating-point number* 1.7976931348623157×10^{308} is approximately equal to the largest value that can be represented by a double-precision IEEE floating-point value. *Mathematics - Go:* 10^{365}, number of possible moves in the game of Go *Mathematics:* 7068555 · 2^{121301} − 1 is a Sophie Germain prime *Mathematics:* 16869987339975 · 2^{171960} − 1 is a Chen prime *Mathematics:* 16869987339975 · 2^{171960} ± 1 are twin primes *Mathematics:* 34790!–1 is a factorial prime *Mathematics:* 392113#+1 is a primorial prime *Mathematics:* 10^{9,808,357}, order of magnitude of the largest known prime, as of September 2006. The exact value of that record prime is :2^{32,582,657} − 1. Proving prime numbers with a thousand to several tens of thousands of decimal digits, depending on special form, can be done in minutes on modern computers. *Mathematics - Hist:* 10^{80,000,000,000,000,000}, largest named number in Archimedes' *Sand Reckoner* *Mathematics:* 10^{googol} (), a googolplex *Mathematics:* , order of magnitude of an upper bound that occurred in a proof of Skewes *Mathematics:* , order of magnitude of another upper bound in a proof of Skewes *Mathematics:* *Moser's number* should appear somewhere in this section, but is difficult to calculate *Mathematics:* Graham's number, probably the largest number seriously used in a mathematical proof, can be written as *f*^{64}(4); representation in powers of 10 would be impractical (the number of digits in the exponent far exceeds the number of particles in the observable universe), for the definition of the number see the main article about it. *Note:* To correctly interpret the last few entries, keep in mind that exponentiation is performed from right to left. For example, The Shannon number, 1078, is an estimation of the game-tree complexity of chess. ...
In game theory, game complexity is a measure of the complexity of a game. ...
The observable Universe is a term used in cosmology to describe a ball-shaped region of space surrounding the Earth that is close enough that we might observe objects in it. ...
The observable Universe is a term used in cosmology to describe a ball-shaped region of space surrounding the Earth that is close enough that we might observe objects in it. ...
Asankhyeya. ...
The history of India begins with the archaeological record of Homo sapiens ca. ...
Xiangqi (Chinese: è±¡æ£‹; Pinyin: xiÃ ngqÃ; Wade-Giles: hsiang4-chi2; ), is a two-player Chinese game in a family of strategic board games of which Western chess, Indian chaturanga, Japanese shogi, and the more similar Korean janggi are also members. ...
The Planck length, denoted by , is the unit of length in the system of units known as Planck units. ...
The observable Universe is a term used in cosmology to describe a ball-shaped region of space surrounding the Earth that is close enough that we might observe objects in it. ...
The IEEE Standard for Binary Floating-Point Arithmetic (IEEE 754) is the most widely-used standard for floating-point computation, and is followed by many CPU and FPU implementations. ...
Go is a board game for two players. ...
A prime number p is called a Sophie Germain prime if 2p + 1 is also prime. ...
A prime number p is called a Chen prime if p + 2 is either a prime or a product of two primes (that is, if ,where is the Big Omega function. ...
A twin prime is a prime number that differs from another prime number by two. ...
A factorial prime is a number that is one less or one more than a factorial and is also a prime number. ...
In mathematics, primorial primes are prime numbers of the form pn# Â± 1, where: pn# is the primorial of pn. ...
Graph of number of digits in largest known prime by year - electronic era. ...
2006 is a common year starting on Sunday of the Gregorian calendar. ...
Archimedes (Greek: ; c. ...
The Sand Reckoner is probably the most accessible work of Archimedes, in some sense, it is the first research-expository paper. ...
Googolplex is the number . ...
In number theory, Skewes number is by definition the smallest natural number x for which Ï€(x) âˆ’ Li(x) â‰¥ 0 where Ï€(x) is the prime counting function and Li(x) is the offset logarithmic integral. ...
In mathematics, Mosers polygon notation is a means of expressing certain extremely large numbers. ...
Grahams number, named after Ronald Graham, is often described as the largest number that has ever been seriously used in a mathematical proof. ...
In mathematics, a proof is a demonstration that, assuming certain axioms, some statement is necessarily true. ...
## See also For information on how large numbers are named in English, see names of large numbers. ...
This is a list of articles about numbers (not about numerals). ...
In physics, Planck units are physical units of measurement defined exclusively in terms of the five universal physical constants shown in the table below in such a manner that all of these physical constants take on the numerical value of one when expressed in terms of these units. ...
A mathematical constant is a quantity, usually a real number or a complex number, that arises naturally in mathematics and does not change. ...
## External links - Seth Lloyd's paper
*Computational capacity of the universe* provides a number of interesting dimensionless quantities. |