Positive Integers » 20001-30000 » 21901-22000 » 21985
Divisors of the Positive Integer 21985
1, 5, 4397, 21985Sum of all the Divisors of 21985, including itself
26388Sum of the Proper Divisors of 21985
4403Properties of the number 21985
The integer 21985 is an odd number.The integer 21985 is a Composite number.
4403 is less than 21985, so 21985 is a deficient number.
The number 21985 as a Roman Numeral
_X_XMCMLXXXV (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 21985 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 101010111100001 |
| 3: | 1010011021 |
| 4: | 11113201 |
| 5: | 1200420 |
| 6: | 245441 |
| 7: | 121045 |
| 8: | 52741 |
| 9: | 33137 |
| 10: | 21985 |
| 11: | 15577 |
| 12: | 10881 |
| 13: | A012 |
| 14: | 8025 |
| 15: | 67AA |
| 16: | 55E1 |
| 17: | 4814 |
| 18: | 3DF7 |
| 19: | 33H2 |
| 20: | 2EJ5 |
| 21: | 27HJ |
| 22: | 2197 |
| 23: | 1ICK |
| 24: | 1E41 |
| 25: | 1A4A |
| 26: | 16DF |
| 27: | 1347 |
| 28: | 1015 |
| 29: | Q43 |
| 30: | OCP |
| 31: | MR6 |
| 32: | LF1 |
| 33: | K67 |
| 34: | J0L |
| 35: | HX5 |
| 36: | GYP |