(1011000)2 = (130)8
Step by step solution
Step 1: Write down the binary number
(001011000)2
Group all the digits in sets of three starting from the LSB (far right). Add zeros to the left of the last digit if there aren't enough digits to make a set of three.
001 011 000
Step 2: Use the table above to convert each set of three into an octal digit. In this case,
001=1, 011=3, 000=0.
So, the number 130 is the octal equivalent to 1011000 in binary.