Answer
173
Work Step by Step
Add enough zeroes the beginning of the number to make the number of digits divisible by 4.
Convert each group of 4 numbers to its hexadecimal equivalent, as given in the text.
$\underbrace{0001}\underbrace{0111}\underbrace{0011}$
$\ \ \ \ 1\ \ \ \ \ \ 7\ \ \ \ \ \ 3$
