-24 is an even number.
-24 is a Harshad number, which means it is divisible by the sum of its digits (2 + 4 = 6, and -24 is divisible by 6).
In binary, -24 is represented as 1111111111111111111111111111111111111111111111111111111111101000.
In hex, -24 is represented as ffffffffffffffe8.