Positive Integers » 10001-20000 » 19901-20000 » 19987
Divisors of the Positive Integer 19987
1, 11, 23, 79, 253, 869, 1817, 19987Sum of all the Divisors of 19987, including itself
23040Sum of the Proper Divisors of 19987
3053Properties of the number 19987
The integer 19987 is an odd number.The integer 19987 is a Composite number.
3053 is less than 19987, so 19987 is a deficient number.
The number 19987 as a Roman Numeral
_XM_XCMLXXXVII (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 19987 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 100111000010011 |
| 3: | 1000102021 |
| 4: | 10320103 |
| 5: | 1114422 |
| 6: | 232311 |
| 7: | 112162 |
| 8: | 47023 |
| 9: | 30367 |
| 10: | 19987 |
| 11: | 14020 |
| 12: | B697 |
| 13: | 9136 |
| 14: | 73D9 |
| 15: | 5DC7 |
| 16: | 4E13 |
| 17: | 412C |
| 18: | 37C7 |
| 19: | 2H6I |
| 20: | 29J7 |
| 21: | 236G |
| 22: | 1J6B |
| 23: | 1EI0 |
| 24: | 1AGJ |
| 25: | 16OC |
| 26: | 13EJ |
| 27: | 10B7 |
| 28: | PDN |
| 29: | NM6 |
| 30: | M67 |
| 31: | KON |
| 32: | JGJ |
| 33: | IBM |
| 34: | H9T |
| 35: | GB2 |
| 36: | FF7 |