Compare 31991 vs 31994
| Property | 31991 | 31994 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 319911 | 21 × 171 × 9411 |
| Prime factorization | 31991 | 2 × 17 × 941 |
| Divisors count | 2 | 8 |
| Divisors | 1, 31991 | 1, 2, 17, 34, 941, 1882, 15997, 31994 |
| Number of properties | 5 | 0 |
| Additive primes | 1554th | |
| Emirps | 698th | |
| Isolated primes | 2451st | |
| Primes | 3432nd | |
| Ulam primes | 263rd | |
| Roman numberals | ||
| Base 2 | 1111100111101112 | 1111100111110102 |
| Base 3 | 11212122123 | 11212122223 |
| Base 4 | 133033134 | 133033224 |
| Base 5 | 20104315 | 20104345 |
| Base 6 | 4040356 | 4040426 |
| Base 7 | 1621617 | 1621647 |
| Base 8 | 763678 | 763728 |
| Base 9 | 477859 | 477889 |
| Base 10 | 3199110 | 3199410 |
| Base 11 | 2204311 | 2204611 |
| Base 12 | 1661b12 | 1662212 |
| Base 13 | 1173b13 | 1174113 |
| Base 14 | b93114 | b93414 |
| Base 15 | 972b15 | 972e15 |
| Base 16 | 7cf716 | 7cfa16 |