Positive Integers » 20001-30000 » 21901-22000 » 21989
Divisors of the Positive Integer 21989
1, 11, 1999, 21989Sum of all the Divisors of 21989, including itself
24000Sum of the Proper Divisors of 21989
2011Properties of the number 21989
The integer 21989 is an odd number.The integer 21989 is a Composite number.
2011 is less than 21989, so 21989 is a deficient number.
The number 21989 as a Roman Numeral
_X_XMCMLXXXIX (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 21989 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 101010111100101 |
| 3: | 1010011102 |
| 4: | 11113211 |
| 5: | 1200424 |
| 6: | 245445 |
| 7: | 121052 |
| 8: | 52745 |
| 9: | 33142 |
| 10: | 21989 |
| 11: | 15580 |
| 12: | 10885 |
| 13: | A016 |
| 14: | 8029 |
| 15: | 67AE |
| 16: | 55E5 |
| 17: | 4818 |
| 18: | 3DFB |
| 19: | 33H6 |
| 20: | 2EJ9 |
| 21: | 27I2 |
| 22: | 219B |
| 23: | 1ID1 |
| 24: | 1E45 |
| 25: | 1A4E |
| 26: | 16DJ |
| 27: | 134B |
| 28: | 1019 |
| 29: | Q47 |
| 30: | OCT |
| 31: | MRA |
| 32: | LF5 |
| 33: | K6B |
| 34: | J0P |
| 35: | HX9 |
| 36: | GYT |