Compare 20639 vs 21377
| Property | 20639 | 21377 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 206391 | 213771 |
| Prime factorization | 20639 | 21377 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20639 | 1, 21377 |
| Number of properties | 4 | 8 |
| Chen primes | 1143rd | 1177th |
| Good primes | 268th | |
| Happy primes | 384th | |
| Long primes | 909th | |
| Primes | 2326th | 2398th |
| Prime triplets (1st member) | 181st | |
| Pythagorean primes | 1190th | |
| Sexy primes (1st member) | 728th | |
| Twin primes (1st member) | 351st | 363rd |
| Roman numberals | ||
| Base 2 | 1010000100111112 | 1010011100000012 |
| Base 3 | 10010221023 | 10020222023 |
| Base 4 | 110021334 | 110320014 |
| Base 5 | 11300245 | 11410025 |
| Base 6 | 2353156 | 2425456 |
| Base 7 | 1141137 | 1162167 |
| Base 8 | 502378 | 516018 |
| Base 9 | 312729 | 322829 |
| Base 10 | 2063910 | 2137710 |
| Base 11 | 1456311 | 1507411 |
| Base 12 | bb3b12 | 1045512 |
| Base 13 | 951813 | 996513 |
| Base 14 | 774314 | 7b0d14 |
| Base 15 | 61ae15 | 650215 |
| Base 16 | 509f16 | 538116 |