Bitwise AND with decimal and hex

Question

I want to know if I am doing bitwise AND in a right way.

If we have:

231 & 0xFB7F

I am doing the following:

11100111 & 1111101101111111 = 1100111

is it correct?

Answer 1

Correct! 231 in decimal = 1110 0111 in binary = 0000 0000 1110 0111 in binary (shown in 4-bit group for convenience)

0xFB7F in hex = 1111 1011 0111 1111

When you do bit wise-AND this becomes

0000 0000 0110 0111 in binary
= 67 in deciomal