Two hundred eighty five
285 is an odd number.
285 is a Harshad number, which means it is divisible by the sum of its digits (2 + 8 + 5 = 15, and 285 is divisible by 15).
In binary, 285 is represented as 100011101.
In hex, 285 is represented as 11d.
Prime factorization of 285: 3 * 5 * 19.