Compare 31979 vs 31981
| Property | 31979 | 31981 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 1131 × 2831 | 319811 |
| Prime factorization | 113 × 283 | 31981 |
| Divisors count | 4 | 2 |
| Divisors | 1, 113, 283, 31979 | 1, 31981 |
| Number of properties | 1 | 5 |
| Emirps | 697th | |
| Isolated primes | 2450th | |
| Long primes | 1300th | |
| Primes | 3431st | |
| Pythagorean primes | 1705th | |
| Semiprimes | 7943rd | |
| Roman numberals | ||
| Base 2 | 1111100111010112 | 1111100111011012 |
| Base 3 | 11212121023 | 11212121113 |
| Base 4 | 133032234 | 133032314 |
| Base 5 | 20104045 | 20104115 |
| Base 6 | 4040156 | 4040216 |
| Base 7 | 1621437 | 1621457 |
| Base 8 | 763538 | 763558 |
| Base 9 | 477729 | 477749 |
| Base 10 | 3197910 | 3198110 |
| Base 11 | 2203211 | 2203411 |
| Base 12 | 1660b12 | 1661112 |
| Base 13 | 1172c13 | 1173113 |
| Base 14 | b92314 | b92514 |
| Base 15 | 971e15 | 972115 |
| Base 16 | 7ceb16 | 7ced16 |