Compare 31991 vs 32001
| Property | 31991 | 32001 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 319911 | 31 × 106671 |
| Prime factorization | 31991 | 3 × 10667 |
| Divisors count | 2 | 4 |
| Divisors | 1, 31991 | 1, 3, 10667, 32001 |
| Number of properties | 5 | 1 |
| Additive primes | 1554th | |
| Emirps | 698th | |
| Isolated primes | 2451st | |
| Primes | 3432nd | |
| Semiprimes | 7949th | |
| Ulam primes | 263rd | |
| Roman numberals | ||
| Base 2 | 1111100111101112 | 1111101000000012 |
| Base 3 | 11212122123 | 11212200203 |
| Base 4 | 133033134 | 133100014 |
| Base 5 | 20104315 | 20110015 |
| Base 6 | 4040356 | 4040536 |
| Base 7 | 1621617 | 1622047 |
| Base 8 | 763678 | 764018 |
| Base 9 | 477859 | 478069 |
| Base 10 | 3199110 | 3200110 |
| Base 11 | 2204311 | 2205211 |
| Base 12 | 1661b12 | 1662912 |
| Base 13 | 1173b13 | 1174813 |
| Base 14 | b93114 | b93b14 |
| Base 15 | 972b15 | 973615 |
| Base 16 | 7cf716 | 7d0116 |