AA in Decimal
Hexadecimal AA equals 170 in decimal.
Why this number matters: 170 is 0xAA / binary 10101010 - the classic alternating bit pattern used in memory tests.
AA in all number bases
Decimal170
Hexadecimal0xAA
Binary1010 1010
Octal252
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Edit this value or switch its base. Your changes are calculated in your browser with exact integer arithmetic.
Input base:
Decimal
170Hex
0xAABinary
0b10101010Octal
0o252How aa converts from hexadecimal to decimal
Multiply each digit by 16 raised to its position (starting at 0 from the right), then add the results:
A× 161 = 10 × 16 = 160
A× 160 = 10 × 1 = 10
Sum: 170
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