42 in Binary
Decimal 42 equals 101010 in binary.
42 in all number bases
Decimal42
Hexadecimal0x2A
Binary0010 1010
Octal52
How 42 converts from decimal to binary
Divide by 2 repeatedly and keep each remainder, then read the remainders from bottom to top:
42÷ 2 =21remainder0
21÷ 2 =10remainder1
10÷ 2 =5remainder0
5÷ 2 =2remainder1
2÷ 2 =1remainder0
1÷ 2 =0remainder1
Result (remainders bottom to top): 101010