Question

How do you represent the (decimal) integer 50 in, oh, “hexadecimal,” otherwise known as base-16? Recall that decimal is simply base-10, and binary is simply base-2. Infer from those base systems how to represent this one!

Answer 1

This kind of conversion is buit in to most highlevel languages. In python there's a hex function - and oct and bin. Moreover the int function can convert these representations back to numbers, given a base.

>>> print hex(50)
0x32
>>> print hex(16 * 16 - 1)
0xff
>>> print int(hex(16 * 16 - 1), 16)
255
See more here: http://docs.python.org/library/functions.html

Answer 2

you can create your own program for such convertions.. it's quite simple