2A in Decimal
Hexadecimal 2A equals 42 in decimal.
2A in all number bases
Decimal42
Hexadecimal0x2A
Binary0010 1010
Octal52
How 2a converts from hexadecimal to decimal
Multiply each digit by 16 raised to its position (starting at 0 from the right), then add the results:
2× 161 = 2 × 16 = 32
A× 160 = 10 × 1 = 10
Sum: 42