Compare 256391 vs 256397
| Property | 256391 | 256397 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2563911 | 1131 × 22691 |
| Prime factorization | 256391 | 113 × 2269 |
| Divisors count | 2 | 4 |
| Divisors | 1, 256391 | 1, 113, 2269, 256397 |
| Number of properties | 4 | 1 |
| Chen primes | 9323rd | |
| Harmonic primes | 8403rd | |
| Primes | 22555th | |
| Semiprimes | 57287th | |
| Twin primes (1st member) | 2636th | |
| Roman numberals | ||
| Base 2 | 1111101001100001112 | 1111101001100011012 |
| Base 3 | 1110002002223 | 1110002010123 |
| Base 4 | 3322120134 | 3322120314 |
| Base 5 | 312010315 | 312010425 |
| Base 6 | 52545556 | 52550056 |
| Base 7 | 21153327 | 21153417 |
| Base 8 | 7646078 | 7646158 |
| Base 9 | 4306289 | 4306359 |
| Base 10 | 25639110 | 25639710 |
| Base 11 | 1656a311 | 1656a911 |
| Base 12 | 10445b12 | 10446512 |
| Base 13 | 8c91513 | 8c91b13 |
| Base 14 | 6961914 | 6962114 |
| Base 15 | 50e7b15 | 50e8215 |
| Base 16 | 3e98716 | 3e98d16 |