Positive Integers » 20001-30000 » 21601-21700 » 21691
Divisors of the Positive Integer 21691
1, 109, 199, 21691Sum of all the Divisors of 21691, including itself
22000Sum of the Proper Divisors of 21691
309Properties of the number 21691
The integer 21691 is an odd number.The integer 21691 is a Composite number.
309 is less than 21691, so 21691 is a deficient number.
The number 21691 as a Roman Numeral
_X_XMDCXCI (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 21691 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 101010010111011 |
| 3: | 1002202101 |
| 4: | 11102323 |
| 5: | 1143231 |
| 6: | 244231 |
| 7: | 120145 |
| 8: | 52273 |
| 9: | 32671 |
| 10: | 21691 |
| 11: | 1532A |
| 12: | 10677 |
| 13: | 9B47 |
| 14: | 7C95 |
| 15: | 6661 |
| 16: | 54BB |
| 17: | 470G |
| 18: | 3CH1 |
| 19: | 331C |
| 20: | 2E4B |
| 21: | 273J |
| 22: | 20HL |
| 23: | 1I02 |
| 24: | 1DFJ |
| 25: | 19HG |
| 26: | 1627 |
| 27: | 12KA |
| 28: | RIJ |
| 29: | PMS |
| 30: | O31 |
| 31: | MHM |
| 32: | L5R |
| 33: | JUA |
| 34: | IPX |
| 35: | HOQ |
| 36: | GQJ |