-247 is an odd number.
-247 is a Harshad number, which means it is divisible by the sum of its digits (2 + 4 + 7 = 13, and -247 is divisible by 13).
In binary, -247 is represented as 1111111111111111111111111111111111111111111111111111111100001001.
In hex, -247 is represented as ffffffffffffff09.