Compare 621389 vs 621391
| Property | 621389 | 621391 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6213891 | 231 × 270171 |
| Prime factorization | 621389 | 23 × 27017 |
| Divisors count | 2 | 4 |
| Divisors | 1, 621389 | 1, 23, 27017, 621391 |
| Number of properties | 4 | 1 |
| Additive primes | 19824th | |
| Chen primes | 19876th | |
| Isolated primes | 39747th | |
| Primes | 50718th | |
| Semiprimes | 133232nd | |
| Roman numberals | ||
| Base 2 | 100101111011010011012 | 100101111011010011112 |
| Base 3 | 10111201011023 | 10111201011113 |
| Base 4 | 21132310314 | 21132310334 |
| Base 5 | 1243410245 | 1243410315 |
| Base 6 | 211524456 | 211524516 |
| Base 7 | 51654267 | 51654317 |
| Base 8 | 22755158 | 22755178 |
| Base 9 | 11463429 | 11463449 |
| Base 10 | 62138910 | 62139110 |
| Base 11 | 39494a11 | 39495111 |
| Base 12 | 25b72512 | 25b72712 |
| Base 13 | 189ab213 | 189ab413 |
| Base 14 | 12264d14 | 12265114 |
| Base 15 | c41ae15 | c41b115 |
| Base 16 | 97b4d16 | 97b4f16 |