1001 Octal to Decimal
1001 octal = 513 decimal
1001 written in decimal is 513.
1001 octal = 513 decimal
How to convert 1001 to decimal
Octal to decimal
Multiply each digit by 8 to the power of its position (0 on the right), then add:
| Digit | Place value | Digit × place |
|---|---|---|
1 | 83 = 512 | 512 |
0 | 82 = 64 | 0 |
0 | 81 = 8 | 0 |
1 | 80 = 1 | 1 |
512 + 0 + 0 + 1 = 513
1001 (octal) in other systems
| Binary | 1000000001 |
| Roman numerals | DXIII |
| Hexadecimal | 201 |
| Duodecimal | 369 |
| Ternary | 201000 |
| Base 36 | E9 |
| Vigesimal | 15D |
| Quaternary | 20001 |
| Quinary | 4023 |
| Senary | 2213 |
Nearby octal to decimal conversions
| 774 to decimal | 508 |
| 775 to decimal | 509 |
| 776 to decimal | 510 |
| 777 to decimal | 511 |
| 1000 to decimal | 512 |
| 1002 to decimal | 514 |
| 1003 to decimal | 515 |
| 1004 to decimal | 516 |
| 1005 to decimal | 517 |
| 1006 to decimal | 518 |
About the number 513
- 513 is an odd number.
- 513 is not a prime number.
- Written in binary it needs 10 bits, so it fits in 2 bytes.
Reverse conversion
Frequently asked questions
What is 1001 in decimal?
1001 in octal is 513 in decimal.