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Encyclopedia > Base 30
Numeral systems

Abjad (Arabic)
Attic (Greek)
D'ni (fictitious)
Ionian (Greek)
roger la crevette A numeral is a symbol or group of symbols that represents a number. ... Arabic numerals (also called Hindu numerals or Indian numerals - though the correct term would be the Hindu-Arabic or Indian-Arabic Numerals) are the most common set of symbols used to represent numbers. ... The Abjad numerals are a numeral system which was used in the Arabic-speaking world prior to the use of the so-called Arabic numerals (which are actually of Indian origin). ... Attic numerals were used by ancient Greeks, possibly from the 7th century BC. They were also known as Herodianic numerals because they were first described in a 2nd century manuscript by Herodianus. ... Babylonian numerals were written in cuneiform, using a wedge-tipped reed stylus to make a mark on a soft clay tablet which would be exposed in the sun to harden to create a permanent record. ... The Brahmi numerals are an indigenous Indian numeral system attested from the 3rd century BCE (somewhat later in the case of most of the tens). ... Cyrillic numerals was a numbering system derived from the Cyrillic alphabet, used by South and East Slavic peoples. ... Myst franchise Games Myst Riven Myst III: Exile Myst IV: Revelation Myst V: End of Ages Uru: Ages Beyond Myst Ages of: Myst Riven Myst III: Exile Myst IV: Revelation Uru Novels Myst: The Book of Atrus   Tiana   Dni Comic Books #0   #1 Miscellaneous Dni Ages   The... The Etruscan numerals were used by the ancient Etruscans. ... The system of Hebrew numerals is a quasi-decimal alphabetic numeral system using the letters of the Hebrew alphabet. ... Ionian numerals were used by the ancient Greeks, possibly before the 7th century BC. They are also known by the names Milesian numerals or Alexandrian numerals. ... Khmer numerals are the numerals used in the Khmer language of Cambodia. ... The Pre-Columbian Maya civilization used a vigesimal (base-twenty) numeral system. ... The system of Roman numerals is a numeral system originating in ancient Rome, and was adapted from Etruscan numerals. ...

Unary (1)
Binary (2)
Ternary (3)
Quaternary (4)
Quinary (5)
Senary (6)
Septenary (7)
Octal (8)
Nonary (9)
Decimal (10)
Undecimal (11)
Duodecimal (12)
Tridecimal (13)
Hexadecimal (16)
Vigesimal (20)
Quadrovigesimal (24)
Hexavigesimal (26)
Septemvigesimal (27)
Trigesimal (30)
Duotrigesimal (32)
Sexatrigesimal (36)
Sexagesimal (60)
Quadrosexagesimal (64)
The unary numeral system is the simplest numeral system to represent natural numbers: in order to represent a number N, an arbitrarily chosen symbol is repeated N times. ... The binary numeral system represents numeric values using two symbols, typically 0 and 1. ... Ternary is the base-3 numeral system. ... Quaternary is the base four numeral system. ... Quinary (base-five) is a numeral system with five as the base. ... A senary numeral system is a base-six numeral system. ... The septenary numeral system is the base seven number system, and uses the digits 0-6. ... The octal numeral system is the base-8 number system, and uses the digits 0 to 7. ... Nonary is a base 9 numeral system, typically using the digits 0-8, but not the digit 9. ... Decimal, or less commonly, denary, usually refers to the base 10 numeral system. ... The undecimal positional notation system is based on the number eleven, rather than ten as in decimal or eight in octal and so on. ... A duodecimal multiplication table The duodecimal (also known as base-twelve or dozenal) system is a numeral system using twelve as its base. ... Base 13 is a nonstandard positional numeral system. ... In mathematics and computer science, hexadecimal, or simply hex, is a numeral system with a radix or base of 16 usually written using the symbols 0–9 and A–F or a–f. ... The vigesimal or base-twenty numeral system is based on twenty (in the same way in which the ordinary decimal numeral system is based on ten). ... As there are 24 hours in a day a numbering system based upon 24, and as the base 12 is convenient here some examples of the base 24 (quadrovigesimal) system. ... A Hexavigesimal numeral system has a base of twenty-six. ... A Septemvigesimal numeral system has a base of twenty-seven. ... Base32 is a derivation of Base64 with the following additional properties: The resulting character set is all uppercase, which can often be beneficial when using a case-sensitive filesystem. ... Base 36 refers to a positional numeral system using 36 as the radix. ... The sexagesimal (base-sixty) is a numeral system with sixty as the base. ... Base 64 literally means a positional numbering system using a base of 64. ...


Base 30 or trigesimal is a positional numeral system using 30 as the radix. Digits in this base can be represented using the Arabic numerals 0-9 and the Latin letters A-T. Positional notation is a system in which each position has a value represented by a unique symbol or character. ... 30 (thirty) is the natural number following 29 and preceding 31. ... The radix (Latin for root), also called base, is the number of various unique symbols (or digits or numerals) a positional numeral system uses to represent numbers. ... Arabic numerals (also called Hindu numerals or Indian numerals - though the correct term would be the Hindu-Arabic or Indian-Arabic Numerals) are the most common set of symbols used to represent numbers. ... The Latin alphabet, also called the Roman alphabet, is the most widely used alphabetic writing system in the world today. ...

From a mathematical viewpoint, 30 is a convenient choice for a base in that it is divisible by the three smallest prime numbers (2, 3, and 5) and by their multiples 6, 10, and 15 — many vulgar fractions are easily expressed in base 30. On the other hand, base 30 has poor radix economy, and it shares the problem with base 60 of its radix falling between twin primes, resulting in few recurring fractions having short periods. Mathematics is commonly defined as the study of patterns of structure, change, and space; more informally, one might say it is the study of figures and numbers. Mathematical knowledge is constantly growing, through research and application, but mathematics itself is not usually considered a natural science. ... In mathematics, a prime number (or prime) is a natural number greater than one whose only positive divisors are one and itself. ... It has been suggested that this article or section be merged with fraction (mathematics). ... Sexagesimal numbering is a numeral system with number 60 as the base. ... A twin prime is a prime number that differs from another prime number by two. ...

Conversion table
Decimal 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Base 30 0 1 2 3 4 5 6 7 8 9 A B C D E
Decimal 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
Base 30 F G H I J K L M N O P Q R S T
Fractions in base 30
Fraction Base 30
1/2 0.f
1/3 0.a
1/4 0.7f
1/5 0.6
1/6 0.5
1/7 0.48h
1/8 0.3mf
1/9 0.3a
1/10 0.3
1/11 0.2logar85dj
1/12 0.2f
1/13 0.296rkn
1/14 0.248h
1/15 0.2
1/16 0.1q7f
1/17 0.1ms7
1/18 0.1k
1/19 0.1hb
1/20 0.1f
1/21 0.1cpl
1/22 0.1ar85dj2log
1/23 0.193rbm56fjgskq2i7onead
1/24 0.17f
1/25 0.16
1/26 0.14idpbg
1/27 0.13a
1/28 0.1248h
1/29 0.1
1/30 0.1



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