Compare 291439 vs 291442
| Property | 291439 | 291442 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2914391 | 21 × 1457211 |
| Prime factorization | 291439 | 2 × 145721 |
| Divisors count | 2 | 4 |
| Divisors | 1, 291439 | 1, 2, 145721, 291442 |
| Number of properties | 7 | 1 |
| Cousin primes (1st member) | 2910th | |
| Happy primes | 3793rd | |
| Harmonic primes | 9461st | |
| Lucky primes | 3127th | |
| Primes | 25344th | |
| Prime triplets (2nd member) | 1135th | |
| Semiprimes | 64769th | |
| Twin primes (2nd member) | 2935th | |
| Roman numberals | ||
| Base 2 | 10001110010011011112 | 10001110010011100102 |
| Base 3 | 1122102100013 | 1122102100113 |
| Base 4 | 10130212334 | 10130213024 |
| Base 5 | 333112245 | 333112325 |
| Base 6 | 101251316 | 101251346 |
| Base 7 | 23224517 | 23224547 |
| Base 8 | 10711578 | 10711628 |
| Base 9 | 4837019 | 4837049 |
| Base 10 | 29143910 | 29144210 |
| Base 11 | 189a6511 | 189a6811 |
| Base 12 | 1207a712 | 1207aa12 |
| Base 13 | a286513 | a286813 |
| Base 14 | 782d114 | 782d414 |
| Base 15 | 5b54415 | 5b54715 |
| Base 16 | 4726f16 | 4727216 |