Positive Integers » 20001-30000 » 21901-22000 » 21990
Divisors of the Positive Integer 21990
1, 2, 3, 5, 6, 10, 15, 30, 733, 1466, 2199, 3665, 4398, 7330, 10995, 21990Sum of all the Divisors of 21990, including itself
52848Sum of the Proper Divisors of 21990
30858Properties of the number 21990
The integer 21990 is an even number.The integer 21990 is a Composite number.
30858 is greater than 21990, so 21990 is an abundant number.
The number 21990 as a Roman Numeral
_X_XMCMXC (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 21990 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 101010111100110 |
| 3: | 1010011110 |
| 4: | 11113212 |
| 5: | 1200430 |
| 6: | 245450 |
| 7: | 121053 |
| 8: | 52746 |
| 9: | 33143 |
| 10: | 21990 |
| 11: | 15581 |
| 12: | 10886 |
| 13: | A017 |
| 14: | 802A |
| 15: | 67B0 |
| 16: | 55E6 |
| 17: | 4819 |
| 18: | 3DFC |
| 19: | 33H7 |
| 20: | 2EJA |
| 21: | 27I3 |
| 22: | 219C |
| 23: | 1ID2 |
| 24: | 1E46 |
| 25: | 1A4F |
| 26: | 16DK |
| 27: | 134C |
| 28: | 101A |
| 29: | Q48 |
| 30: | OD0 |
| 31: | MRB |
| 32: | LF6 |
| 33: | K6C |
| 34: | J0Q |
| 35: | HXA |
| 36: | GYU |