8A Hexadecimal to Octal
8A hexadecimal = 212 octal
8A written in octal is 212, the number 138 in everyday decimal.
8A hexadecimal = 212 octal
How to convert 8A to octal
Step 1: Hexadecimal to decimal
Multiply each digit by 16 to the power of its position (0 on the right), then add:
| Digit | Place value | Digit × place |
|---|---|---|
8 | 161 = 16 | 128 |
A = 10 | 160 = 1 | 10 |
128 + 10 = 138
Step 2: Decimal to octal
Divide by 8 repeatedly and keep the remainders. Reading the remainders from the last one to the first gives the octal digits:
| Division | Quotient | Remainder (digit) |
|---|---|---|
| 138 ÷ 8 | 17 | 2 |
| 17 ÷ 8 | 2 | 1 |
| 2 ÷ 8 | 0 | 2 |
Result: 138 = 212 in octal.
8A (hexadecimal) in other systems
| Binary | 10001010 |
| Decimal | 138 |
| Roman numerals | CXXXVIII |
| Duodecimal | B6 |
| Ternary | 12010 |
| Base 36 | 3U |
| Vigesimal | 6I |
| Quaternary | 2022 |
| Quinary | 1023 |
| Senary | 350 |
Nearby hexadecimal to octal conversions
| 85 to octal | 205 |
| 86 to octal | 206 |
| 87 to octal | 207 |
| 88 to octal | 210 |
| 89 to octal | 211 |
| 8B to octal | 213 |
| 8C to octal | 214 |
| 8D to octal | 215 |
| 8E to octal | 216 |
| 8F to octal | 217 |
About the number 138
- 138 is an even number.
- 138 is not a prime number.
- Written in binary it needs 8 bits, so it fits in one byte.
Reverse conversion
Frequently asked questions
What is 8A in octal?
8A in hexadecimal is 212 in octal (the number 138 in decimal).