Number 20 - properties and curiosities

Twenty

20 is an even number.

20 is a Harshad number, which means it is divisible by the sum of its digits (2 + 0 = 2, and 20 is divisible by 2).

In binary, 20 is represented as 10100.

In hex, 20 is represented as 14.

Prime factorization of 20: 2² * 5.

Factors of 20 are: 1, 2, 4, 4, 5, 10, 20.