Number 72 - properties and curiosities

72 (number)

72

Number 72 properties

  • Harshad
  • 72 is an even number.
  • 72 is a Harshad number, which means it is divisible by the sum of its digits (72 = 9, and 72 is divisible by 9).

Prime factorization

Prime factorization of 72: 2^3 × 3^2.

Divisors

Divisor count: 12

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

Factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72.

Representations

In octal, 72 is represented as 110.

In binary, 72 is represented as 1001000.

In hex, 72 is represented as 48.

Roman numeral: LXXII

Curiosities

  • 72 is divisible by the sum of its digits.

Quick answers

Is 72 prime?
No, 72 is not prime.

What are the factors of 72?
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

What is 72 in binary?
1001000