Four hundred twenty three
423 is an odd number.
423 is a Harshad number, which means it is divisible by the sum of its digits (4 + 2 + 3 = 9, and 423 is divisible by 9).
In binary, 423 is represented as 110100111.
In hex, 423 is represented as 1a7.
Prime factorization of 423: 32 * 47.