You need to count off four bits at a time, from the right (this is in case the number of binary digits is not an exact multiple of 4).
Then you replace each group of four binary digits by the hexadecimal equivalent. You can easily find a table of conversion online.
1101111010101101 in binary is equal to DEAD in hexadecimal.
The binary representation is : 1111011001
Binary(1010) = Hex(A)
11001101111000010110
The binary equivalent of the hexadecimal number EF16 is 1110111100010110.
The binary number 01011010 is 005A in hexadecimal.
It is 101010111100.
1111
It is A.
10011101: Decimal = 157 Hexadecimal = 9D
1. represent every individual digit of given hexadecimal in binary form like this 4---------> 0100 8---------> 1000 7---------> 0111 2. combine the individual binary digits in order to get the binary of given hexadecimal number 487 ------------> 0100 1000 0111 ( required binary number )
Octal = 52746757 Binary = 101010111100110111101111