Binary System

Conversion of other bases to denary system. To convert numbers in the other bases to denary system, expand the given number in power of its bases.
Examples:
1. Convert 35416 to denary
35416 = 3 x 162 + 5 X 161 + 4 x 160
= 3 x 256 + 5 x 16 + 4 x 1