Two hundred sixty one
261 is an odd number.
261 is a Harshad number, which means it is divisible by the sum of its digits (2 + 6 + 1 = 9, and 261 is divisible by 9).
In binary, 261 is represented as 100000101.
In hex, 261 is represented as 105.
Prime factorization of 261: 32 * 29.