A Vigesimal to Octal
A vigesimal = 12 octal
A written in octal is 12, the number 10 in everyday decimal.
A vigesimal = 12 octal
How to convert A to octal
Step 1: Vigesimal to decimal
Multiply each digit by 20 to the power of its position (0 on the right), then add:
| Digit | Place value | Digit × place |
|---|---|---|
A = 10 | 200 = 1 | 10 |
10 = 10
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) |
|---|---|---|
| 10 ÷ 8 | 1 | 2 |
| 1 ÷ 8 | 0 | 1 |
Result: 10 = 12 in octal.
A (vigesimal) in other systems
| Binary | 1010 |
| Decimal | 10 |
| Roman numerals | X |
| Hexadecimal | A |
| Duodecimal | A |
| Ternary | 101 |
| Base 36 | A |
| Quaternary | 22 |
| Quinary | 20 |
| Senary | 14 |
Nearby vigesimal to octal conversions
| 5 to octal | 5 |
| 6 to octal | 6 |
| 7 to octal | 7 |
| 8 to octal | 10 |
| 9 to octal | 11 |
| B to octal | 13 |
| C to octal | 14 |
| D to octal | 15 |
| E to octal | 16 |
| F to octal | 17 |
About the number 10
- 10 is an even number.
- 10 is not a prime number.
- Written in binary it needs 4 bits, so it fits in one byte.
Reverse conversion
Frequently asked questions
What is A in octal?
A in vigesimal is 12 in octal (the number 10 in decimal).