When the binary number 100011110011011001101001100111

is converted to an eight-digit hexadecimal number, what is the position of the digit D? Count the positions starting from 1 on the left.

i got the answer 23CD9A67, anyone know if thats right?

aaaaaaand i have an idea on how to do the second question but im not entirely sure if im doing it right and i cant really risk making mistakes. Any help would be appreciated, thanks in advance.