Compare 31081 vs 31087
| Property | 31081 | 31087 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 310811 | 71 × 44411 |
| Prime factorization | 31081 | 7 × 4441 |
| Divisors count | 2 | 4 |
| Divisors | 1, 31081 | 1, 7, 4441, 31087 |
| Number of properties | 6 | 1 |
| Additive primes | 1514th | |
| Emirps | 666th | |
| Lucky primes | 519th | |
| Primes | 3349th | |
| Pythagorean primes | 1667th | |
| Semiprimes | 7726th | |
| Twin primes (2nd member) | 479th | |
| Roman numberals | ||
| Base 2 | 1111001011010012 | 1111001011011112 |
| Base 3 | 11201220113 | 11201221013 |
| Base 4 | 132112214 | 132112334 |
| Base 5 | 14433115 | 14433225 |
| Base 6 | 3555216 | 3555316 |
| Base 7 | 1564217 | 1564307 |
| Base 8 | 745518 | 745578 |
| Base 9 | 465649 | 465719 |
| Base 10 | 3108110 | 3108710 |
| Base 11 | 2139611 | 213a111 |
| Base 12 | 15ba112 | 15ba712 |
| Base 13 | 111bb13 | 111c413 |
| Base 14 | b48114 | b48714 |
| Base 15 | 932115 | 932715 |
| Base 16 | 796916 | 796f16 |