Compare 20639 vs 20731
| Property | 20639 | 20731 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 206391 | 207311 |
| Prime factorization | 20639 | 20731 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20639 | 1, 20731 |
| Number of properties | 4 | 6 |
| Additive primes | 1085th | |
| Chen primes | 1143rd | 1148th |
| Happy primes | 384th | |
| Harmonic primes | 853rd | |
| Isolated primes | 1631st | |
| Lucky primes | 379th | |
| Primes | 2326th | 2334th |
| Twin primes (1st member) | 351st | |
| Roman numberals | ||
| Base 2 | 1010000100111112 | 1010000111110112 |
| Base 3 | 10010221023 | 10011022113 |
| Base 4 | 110021334 | 110033234 |
| Base 5 | 11300245 | 11304115 |
| Base 6 | 2353156 | 2355516 |
| Base 7 | 1141137 | 1143047 |
| Base 8 | 502378 | 503738 |
| Base 9 | 312729 | 313849 |
| Base 10 | 2063910 | 2073110 |
| Base 11 | 1456311 | 1463711 |
| Base 12 | bb3b12 | bbb712 |
| Base 13 | 951813 | 958913 |
| Base 14 | 774314 | 77ab14 |
| Base 15 | 61ae15 | 622115 |
| Base 16 | 509f16 | 50fb16 |