-209 is an odd number.
-209 is a Harshad number, which means it is divisible by the sum of its digits (2 + 0 + 9 = 11, and -209 is divisible by 11).
In binary, -209 is represented as 1111111111111111111111111111111111111111111111111111111100101111.
In hex, -209 is represented as ffffffffffffff2f.