60 (number)

← 59 60 61 →
← 60 61 62 63 64 65 66 67 68 69 → List of numbers — Integers ← 0 10 20 30 40 50 60 70 80 90 →
Cardinal	sixty
Ordinal	60th (sixtieth)
Numeral system	sexagesimal
Factorization	22× 3 × 5
Divisors	1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
Roman numeral	LX
Binary	1111002
Ternary	20203
Quaternary	3304
Quinary	2205
Senary	1406
Octal	748
Duodecimal	5012
Hexadecimal	3C16
Vigesimal	3020
Base 36	1O36

60 (sixty) ( Listen ) is the natural number following 59 and preceding 61. Being three times 20, it is called "three score" in older literature.

It is a composite number, with divisors 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60, making it a highly composite number. Because it is the sum of its unitary divisors (excluding itself), it is a unitary perfect number, and it is an abundant number with an abundance of 48. Being ten times a perfect number, it is a semiperfect number.

It is the smallest number divisible by the numbers 1 to 6: there is no smaller number divisible by the numbers 1 to 5. It is the smallest number with exactly 12 divisors. It is one of seven integers that have more divisors than a number twice itself (sequence in the OEIS), one of six that are also lowest common multiple of a consecutive set of integers from 1, and one of six that are divisors of every highly composite number higher than itself.(sequence in the OEIS)

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