| 60 (number) |
Article Index for 60 |
Information About60 (number) |
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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 . And because it is divisible by the sum of its digits in base 10, it is a Harshad 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 Prime s (29 + 31), as well as the sum of four consecutive Prime s (11 + 13 + 17 + 19). The smallest Non-abelian Simple Group has order 60. In normal space, the 3 interior angles of an Equilateral Triangle each measure 60 Degree s, adding up to 180 degrees. The Babylonian Number System had a Base of sixty. 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.) IN ASTRONOMY
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