Positive Integers » 20001-30000 » 21601-21700 » 21681
Divisors of the Positive Integer 21681
1, 3, 9, 11, 27, 33, 73, 99, 219, 297, 657, 803, 1971, 2409, 7227, 21681Sum of all the Divisors of 21681, including itself
35520Sum of the Proper Divisors of 21681
13839Properties of the number 21681
The integer 21681 is an odd number.The integer 21681 is a Composite number.
13839 is less than 21681, so 21681 is a deficient number.
The number 21681 as a Roman Numeral
_X_XMDCLXXXI (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 21681 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 101010010110001 |
| 3: | 1002202000 |
| 4: | 11102301 |
| 5: | 1143211 |
| 6: | 244213 |
| 7: | 120132 |
| 8: | 52261 |
| 9: | 32660 |
| 10: | 21681 |
| 11: | 15320 |
| 12: | 10669 |
| 13: | 9B3A |
| 14: | 7C89 |
| 15: | 6656 |
| 16: | 54B1 |
| 17: | 4706 |
| 18: | 3CG9 |
| 19: | 3312 |
| 20: | 2E41 |
| 21: | 2739 |
| 22: | 20HB |
| 23: | 1HMF |
| 24: | 1DF9 |
| 25: | 19H6 |
| 26: | 161N |
| 27: | 12K0 |
| 28: | RI9 |
| 29: | PMI |
| 30: | O2L |
| 31: | MHC |
| 32: | L5H |
| 33: | JU0 |
| 34: | IPN |
| 35: | HOG |
| 36: | GQ9 |