Compare 19957 vs 19961
| Property | 19957 | 19961 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 28511 | 199611 |
| Prime factorization | 7 × 2851 | 19961 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 2851, 19957 | 1, 19961 |
| Number of properties | 1 | 5 |
| Chen primes | 1110th | |
| Good primes | 257th | |
| Primes | 2256th | |
| Pythagorean primes | 1122nd | |
| Semiprimes | 5075th | |
| Twin primes (1st member) | 341st | |
| Roman numberals | ||
| Base 2 | 1001101111101012 | 1001101111110012 |
| Base 3 | 10001010113 | 10001010223 |
| Base 4 | 103133114 | 103133214 |
| Base 5 | 11143125 | 11143215 |
| Base 6 | 2322216 | 2322256 |
| Base 7 | 1121207 | 1121247 |
| Base 8 | 467658 | 467718 |
| Base 9 | 303349 | 303389 |
| Base 10 | 1995710 | 1996110 |
| Base 11 | 13aa311 | 13aa711 |
| Base 12 | b67112 | b67512 |
| Base 13 | 911213 | 911613 |
| Base 14 | 73b714 | 73bb14 |
| Base 15 | 5da715 | 5dab15 |
| Base 16 | 4df516 | 4df916 |