Compare 19889 vs 20639
| Property | 19889 | 20639 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198891 | 206391 |
| Prime factorization | 19889 | 20639 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19889 | 1, 20639 |
| Number of properties | 8 | 4 |
| Chen primes | 1106th | 1143rd |
| Good primes | 255th | |
| Happy primes | 374th | 384th |
| Harmonic primes | 814th | |
| Primes | 2249th | 2326th |
| Pythagorean primes | 1118th | |
| Sophie germain primes | 323rd | |
| Twin primes (1st member) | 340th | 351st |
| Roman numberals | ||
| Base 2 | 1001101101100012 | 1010000100111112 |
| Base 3 | 10000211223 | 10010221023 |
| Base 4 | 103123014 | 110021334 |
| Base 5 | 11140245 | 11300245 |
| Base 6 | 2320256 | 2353156 |
| Base 7 | 1116627 | 1141137 |
| Base 8 | 466618 | 502378 |
| Base 9 | 302489 | 312729 |
| Base 10 | 1988910 | 2063910 |
| Base 11 | 13a4111 | 1456311 |
| Base 12 | b61512 | bb3b12 |
| Base 13 | 908c13 | 951813 |
| Base 14 | 736914 | 774314 |
| Base 15 | 5d5e15 | 61ae15 |
| Base 16 | 4db116 | 509f16 |