Compare 31979 vs 31990
| Property | 31979 | 31990 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 4 |
| Total factors | 2 | 4 |
| Prime factorization | 1131 × 2831 | 21 × 51 × 71 × 4571 |
| Prime factorization | 113 × 283 | 2 × 5 × 7 × 457 |
| Divisors count | 4 | 16 |
| Divisors | 1, 113, 283, 31979 | 1, 2, 5, 7, 10, 14, 35, 70, 457, 914, 2285, 3199, 4570, 6398, 15995, 31990 |
| Number of properties | 1 | 0 |
| Semiprimes | 7943rd | |
| Roman numberals | ||
| Base 2 | 1111100111010112 | 1111100111101102 |
| Base 3 | 11212121023 | 11212122113 |
| Base 4 | 133032234 | 133033124 |
| Base 5 | 20104045 | 20104305 |
| Base 6 | 4040156 | 4040346 |
| Base 7 | 1621437 | 1621607 |
| Base 8 | 763538 | 763668 |
| Base 9 | 477729 | 477849 |
| Base 10 | 3197910 | 3199010 |
| Base 11 | 2203211 | 2204211 |
| Base 12 | 1660b12 | 1661a12 |
| Base 13 | 1172c13 | 1173a13 |
| Base 14 | b92314 | b93014 |
| Base 15 | 971e15 | 972a15 |
| Base 16 | 7ceb16 | 7cf616 |