Compare 19979 vs 20639
| Property | 19979 | 20639 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 199791 | 206391 |
| Prime factorization | 19979 | 20639 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19979 | 1, 20639 |
| Number of properties | 6 | 4 |
| Chen primes | 1143rd | |
| Happy primes | 376th | 384th |
| Harmonic primes | 819th | |
| Isolated primes | 1578th | |
| Long primes | 864th | |
| Primes | 2259th | 2326th |
| Sexy primes (2nd member) | 692nd | |
| Twin primes (1st member) | 351st | |
| Roman numberals | ||
| Base 2 | 1001110000010112 | 1010000100111112 |
| Base 3 | 10001012223 | 10010221023 |
| Base 4 | 103200234 | 110021334 |
| Base 5 | 11144045 | 11300245 |
| Base 6 | 2322556 | 2353156 |
| Base 7 | 1121517 | 1141137 |
| Base 8 | 470138 | 502378 |
| Base 9 | 303589 | 312729 |
| Base 10 | 1997910 | 2063910 |
| Base 11 | 1401311 | 1456311 |
| Base 12 | b68b12 | bb3b12 |
| Base 13 | 912b13 | 951813 |
| Base 14 | 73d114 | 774314 |
| Base 15 | 5dbe15 | 61ae15 |
| Base 16 | 4e0b16 | 509f16 |