42 in Decimal
Hexadecimal 42 equals 66 in decimal.
42 in all number bases
Decimal66
Hexadecimal0x42
Binary0100 0010
Octal102
How 42 converts from hexadecimal to decimal
Multiply each digit by 16 raised to its position (starting at 0 from the right), then add the results:
4× 161 = 4 × 16 = 64
2× 160 = 2 × 1 = 2
Sum: 66