Positive Integers » 20001-30000 » 21801-21900 » 21870
Divisors of the Positive Integer 21870
1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 729, 810, 1215, 1458, 2187, 2430, 3645, 4374, 7290, 10935, 21870Sum of all the Divisors of 21870, including itself
59040Sum of the Proper Divisors of 21870
37170Properties of the number 21870
The integer 21870 is an even number.The integer 21870 is a Composite number.
37170 is greater than 21870, so 21870 is an abundant number.
The number 21870 as a Roman Numeral
_X_XMDCCCLXX (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 21870 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 101010101101110 |
| 3: | 1010000000 |
| 4: | 11111232 |
| 5: | 1144440 |
| 6: | 245130 |
| 7: | 120522 |
| 8: | 52556 |
| 9: | 33000 |
| 10: | 21870 |
| 11: | 15482 |
| 12: | 107A6 |
| 13: | 9C54 |
| 14: | 7D82 |
| 15: | 6730 |
| 16: | 556E |
| 17: | 47B8 |
| 18: | 3D90 |
| 19: | 33B1 |
| 20: | 2EDA |
| 21: | 27C9 |
| 22: | 2142 |
| 23: | 1I7K |
| 24: | 1DN6 |
| 25: | 19OK |
| 26: | 1694 |
| 27: | 1300 |
| 28: | RP2 |
| 29: | Q04 |
| 30: | O90 |
| 31: | MNF |
| 32: | LBE |
| 33: | K2O |
| 34: | IV8 |
| 35: | HTU |
| 36: | GVI |