Positive Integers » 20001-30000 » 21801-21900 » 21809
Divisors of the Positive Integer 21809
1, 113, 193, 21809Sum of all the Divisors of 21809, including itself
22116Sum of the Proper Divisors of 21809
307Properties of the number 21809
The integer 21809 is an odd number.The integer 21809 is a Composite number.
307 is less than 21809, so 21809 is a deficient number.
The number 21809 as a Roman Numeral
_X_XMDCCCIX (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 21809 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 101010100110001 |
| 3: | 1002220202 |
| 4: | 11110301 |
| 5: | 1144214 |
| 6: | 244545 |
| 7: | 120404 |
| 8: | 52461 |
| 9: | 32822 |
| 10: | 21809 |
| 11: | 15427 |
| 12: | 10755 |
| 13: | 9C08 |
| 14: | 7D3B |
| 15: | 66DE |
| 16: | 5531 |
| 17: | 477F |
| 18: | 3D5B |
| 19: | 337G |
| 20: | 2EA9 |
| 21: | 279B |
| 22: | 2117 |
| 23: | 1I55 |
| 24: | 1DKH |
| 25: | 19M9 |
| 26: | 166L |
| 27: | 12OK |
| 28: | RMP |
| 29: | PR1 |
| 30: | O6T |
| 31: | MLG |
| 32: | L9H |
| 33: | K0T |
| 34: | ITF |
| 35: | HS4 |
| 36: | GTT |