Compare 19961 vs 20639
| Property | 19961 | 20639 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 199611 | 206391 |
| Prime factorization | 19961 | 20639 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19961 | 1, 20639 |
| Number of properties | 5 | 4 |
| Chen primes | 1110th | 1143rd |
| Good primes | 257th | |
| Happy primes | 384th | |
| Primes | 2256th | 2326th |
| Pythagorean primes | 1122nd | |
| Twin primes (1st member) | 341st | 351st |
| Roman numberals | ||
| Base 2 | 1001101111110012 | 1010000100111112 |
| Base 3 | 10001010223 | 10010221023 |
| Base 4 | 103133214 | 110021334 |
| Base 5 | 11143215 | 11300245 |
| Base 6 | 2322256 | 2353156 |
| Base 7 | 1121247 | 1141137 |
| Base 8 | 467718 | 502378 |
| Base 9 | 303389 | 312729 |
| Base 10 | 1996110 | 2063910 |
| Base 11 | 13aa711 | 1456311 |
| Base 12 | b67512 | bb3b12 |
| Base 13 | 911613 | 951813 |
| Base 14 | 73bb14 | 774314 |
| Base 15 | 5dab15 | 61ae15 |
| Base 16 | 4df916 | 509f16 |