Positive Integers » 20001-30000 » 21901-22000 » 21997
Divisors of the Positive Integer 21997
1, 21997Sum of all the Divisors of 21997, including itself
21998Sum of the Proper Divisors of 21997
1Properties of the number 21997
The integer 21997 is an odd number.The integer 21997 is a Prime number.
1 is less than 21997, so 21997 is a deficient number.
The number 21997 as a Roman Numeral
_X_XMCMXCVII (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 21997 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 101010111101101 |
| 3: | 1010011201 |
| 4: | 11113231 |
| 5: | 1200442 |
| 6: | 245501 |
| 7: | 121063 |
| 8: | 52755 |
| 9: | 33151 |
| 10: | 21997 |
| 11: | 15588 |
| 12: | 10891 |
| 13: | A021 |
| 14: | 8033 |
| 15: | 67B7 |
| 16: | 55ED |
| 17: | 481G |
| 18: | 3DG1 |
| 19: | 33HE |
| 20: | 2EJH |
| 21: | 27IA |
| 22: | 219J |
| 23: | 1ID9 |
| 24: | 1E4D |
| 25: | 1A4M |
| 26: | 16E1 |
| 27: | 134J |
| 28: | 101H |
| 29: | Q4F |
| 30: | OD7 |
| 31: | MRI |
| 32: | LFD |
| 33: | K6J |
| 34: | J0X |
| 35: | HXH |
| 36: | GZ1 |