Positive Integers » 20001-30000 » 20901-21000 » 20991
Divisors of the Positive Integer 20991
1, 3, 6997, 20991Sum of all the Divisors of 20991, including itself
27992Sum of the Proper Divisors of 20991
7001Properties of the number 20991
The integer 20991 is an odd number.The integer 20991 is a Composite number.
7001 is less than 20991, so 20991 is a deficient number.
The number 20991 as a Roman Numeral
_X_XCMXCI (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 20991 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 101000111111111 |
| 3: | 1001210110 |
| 4: | 11013333 |
| 5: | 1132431 |
| 6: | 241103 |
| 7: | 115125 |
| 8: | 50777 |
| 9: | 31713 |
| 10: | 20991 |
| 11: | 14853 |
| 12: | 10193 |
| 13: | 9729 |
| 14: | 7915 |
| 15: | 6346 |
| 16: | 51FF |
| 17: | 44AD |
| 18: | 3AE3 |
| 19: | 312F |
| 20: | 2C9B |
| 21: | 25CC |
| 22: | 1L83 |
| 23: | 1GFF |
| 24: | 1CAF |
| 25: | 18EG |
| 26: | 1519 |
| 27: | 11LC |
| 28: | QLJ |
| 29: | ORO |
| 30: | N9L |
| 31: | LQ4 |
| 32: | KFV |
| 33: | J93 |
| 34: | I5D |
| 35: | H4Q |
| 36: | G73 |