-70 is an even number.
-70 is a Harshad number, which means it is divisible by the sum of its digits (7 + 0 = 7, and -70 is divisible by 7).
In binary, -70 is represented as 1111111111111111111111111111111111111111111111111111111110111010.
In hex, -70 is represented as ffffffffffffffba.