Binary Numbers
Given a binary number, add up the
powers of 2 corresponding to 1s
0100 1100
       0x20   = 0
       0x21   = 0
       1x22   = 4
       1x23   = 8
        0x24   = 0
       0x25   = 0
       1x26   = 64
        0x27   = 0
         = 76