AskDefine | Define sixty

Dictionary Definition

sixty adj : being ten more than fifty [syn: 60, lx, threescore] n : the cardinal number that is the product of ten and six [syn: 60, LX]

User Contributed Dictionary

English

Etymology

Old English sixtiġ

Pronunciation

Numeral

sixty
  1. The cardinal number occurring after fifty-nine and before sixty-one, represented in Roman numerals as LX and in Arabic numerals as 60. Ordinal: sixtieth.

Translations

cardinal number

Extensive Definition

60 (sixty) is the natural number following 59 and preceding 61. Being thrice twenty, 60 is called "three score" in some older literature.

In mathematics

Sixty is a composite number with divisors 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, making it also a highly composite number. Because 60 is the sum of its unitary divisors (excluding itself), it is a unitary perfect number. Being ten times a perfect number, 60 is a semiperfect number.
60 is the smallest number divisible by the numbers 1 to 6. (There is no smaller number divisible by the numbers 1 to 5). 60 is the smallest number with exactly 12 divisors.
This number is the sum of a pair of twin primes (29 + 31), as well as the sum of four consecutive primes (11 + 13 + 17 + 19). It is adjacent to two prime numbers (59,61).
The smallest non-abelian simple group has order 60.
In geometry, 60 is the number of seconds in a minute, and the number of minutes in a degree. In normal space, the 3 interior angles of an equilateral triangle each measure 60 degrees, adding up to 180 degrees.
The Babylonian number system had a base of sixty. The number system in the Mali Empire was apparently also based on sixty (this is reflected in the counting system of the Maasina Fulfulde, a variant of the Fula language spoken in contemporary Mali). A number system with base-sixty is called the sexagesimal (original meaning of sexagesimal is sixtieth).
The sexagenary cycle plays a role in Chinese calendar and numerology. (Originally, sexagenary means sixty each, also centenary means one hundred each.)
Because 60 is divisible by the sum of its digits in base 10, it is a Harshad number.
In and in lang-la sexagena equals 60 = 5 dozen = 1/2 small gross. This quantity was used in international medieval treaties e.g. for ransom of captured Teutonic Knights.

In science

  • The atomic number of neodymium, a lanthanide. The neodymium following element with the ordinal number 61 (promethium) has in contrast to the neighbour elements no stable isotopes.

Astronomy

In religion

  • Judaism
    • In the laws of kashrut, the proportion (60:1) of kosher to non-kosher ingredients which can render an admixture kosher post-facto. (Talmud, Tractate Chullin 98b ; Shulchan Aruch, Yoreh Deah 98)
    • In the Bedtime Shema, the number of strong men (giborim) said to surround King Solomon's bed.

In other fields

Sixty is:

In music

In sports

Historical years

60 A.D., 60 B.C., 1960, 2060, etc.

References

sixty in Catalan: Seixanta
sixty in Chuvash: 60 (хисеп)
sixty in Corsican: 60 (numeru)
sixty in Danish: 60 (tal)
sixty in German: Sechzig
sixty in Spanish: Sesenta
sixty in Esperanto: Sesdek
sixty in Basque: Hirurogei
sixty in French: 60 (nombre)
sixty in Gan Chinese: 60
sixty in Korean: 60
sixty in Interlingua (International Auxiliary Language Association): 60 (numero)
sixty in Italian: 60 (numero)
sixty in Hebrew: 60 (מספר)
sixty in Haitian: 60 (nonm)
sixty in Kurdish: Şêst
sixty in Lithuanian: 60 (skaičius)
sixty in Lombard: Nümar 60
sixty in Hungarian: 60 (szám)
sixty in Malay (macrolanguage): 60 (nombor)
sixty in Dutch: 60 (getal)
sixty in Japanese: 60
sixty in Norwegian: 60 (tall)
sixty in Norwegian Nynorsk: Talet 60
sixty in Polish: 60 (liczba)
sixty in Portuguese: Sessenta
sixty in Russian: 60 (число)
sixty in Simple English: Sixty
sixty in Slovenian: 60 (število)
sixty in Swedish: 60 (tal)
sixty in Thai: 60
sixty in Vietnamese: 60 (số)
sixty in Wu Chinese: 60
sixty in Yiddish: 60 (נומער)
sixty in Contenese: 60
sixty in Chinese: 60
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