Positive Integers » 20001-30000 » 21801-21900 » 21807
Divisors of the Positive Integer 21807
1, 3, 9, 2423, 7269, 21807Sum of all the Divisors of 21807, including itself
31512Sum of the Proper Divisors of 21807
9705Properties of the number 21807
The integer 21807 is an odd number.The integer 21807 is a Composite number.
9705 is less than 21807, so 21807 is a deficient number.
The number 21807 as a Roman Numeral
_X_XMDCCCVII (Roman Numerals with underscores in front have their values increased by 1,000. The underscore represents a line over the numeral, because the Romans used overlines to multiply by 1,000.)The number 21807 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 101010100101111 |
| 3: | 1002220200 |
| 4: | 11110233 |
| 5: | 1144212 |
| 6: | 244543 |
| 7: | 120402 |
| 8: | 52457 |
| 9: | 32820 |
| 10: | 21807 |
| 11: | 15425 |
| 12: | 10753 |
| 13: | 9C06 |
| 14: | 7D39 |
| 15: | 66DC |
| 16: | 552F |
| 17: | 477D |
| 18: | 3D59 |
| 19: | 337E |
| 20: | 2EA7 |
| 21: | 2799 |
| 22: | 2115 |
| 23: | 1I53 |
| 24: | 1DKF |
| 25: | 19M7 |
| 26: | 166J |
| 27: | 12OI |
| 28: | RMN |
| 29: | PQS |
| 30: | O6R |
| 31: | MLE |
| 32: | L9F |
| 33: | K0R |
| 34: | ITD |
| 35: | HS2 |
| 36: | GTR |