Positive Integers » 10001-20000 » 18901-19000 » 18991
Divisors of the Positive Integer 18991
1, 7, 2713, 18991Sum of all the Divisors of 18991, including itself
21712Sum of the Proper Divisors of 18991
2721Properties of the number 18991
The integer 18991 is an odd number.The integer 18991 is a Composite number.
2721 is less than 18991, so 18991 is a deficient number.
The number 18991 as a Roman Numeral
_X_VMMMCMXCI (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 18991 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 100101000101111 |
| 3: | 222001101 |
| 4: | 10220233 |
| 5: | 1101431 |
| 6: | 223531 |
| 7: | 106240 |
| 8: | 45057 |
| 9: | 28041 |
| 10: | 18991 |
| 11: | 132A5 |
| 12: | ABA7 |
| 13: | 884B |
| 14: | 6CC7 |
| 15: | 5961 |
| 16: | 4A2F |
| 17: | 3EC2 |
| 18: | 34B1 |
| 19: | 2EBA |
| 20: | 279B |
| 21: | 2117 |
| 22: | 1H55 |
| 23: | 1CKG |
| 24: | 18N7 |
| 25: | 159G |
| 26: | 122B |
| 27: | Q1A |
| 28: | O67 |
| 29: | MGP |
| 30: | L31 |
| 31: | JNJ |
| 32: | IHF |
| 33: | HEG |
| 34: | GEJ |
| 35: | FHL |
| 36: | ENJ |