Compare 551381 vs 551389
| Property | 551381 | 551389 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 5513811 | 431 × 128231 |
| Prime factorization | 551381 | 43 × 12823 |
| Divisors count | 2 | 4 |
| Divisors | 1, 551381 | 1, 43, 12823, 551389 |
| Number of properties | 4 | 1 |
| Additive primes | 17821st | |
| Isolated primes | 35510th | |
| Primes | 45429th | |
| Semiprimes | 118925th | |
| Sexy primes (1st member) | 9945th | |
| Roman numberals | ||
| Base 2 | 100001101001110101012 | 100001101001110111012 |
| Base 3 | 10010001001123 | 10010001002113 |
| Base 4 | 20122131114 | 20122131314 |
| Base 5 | 1201210115 | 1201210245 |
| Base 6 | 154524056 | 154524216 |
| Base 7 | 44543457 | 44543567 |
| Base 8 | 20647258 | 20647358 |
| Base 9 | 10303159 | 10303249 |
| Base 10 | 55138110 | 55138910 |
| Base 11 | 34729611 | 3472a311 |
| Base 12 | 22710512 | 22711112 |
| Base 13 | 163c7c13 | 163c8713 |
| Base 14 | 104d2514 | 104d2d14 |
| Base 15 | ad58b15 | ad59415 |
| Base 16 | 869d516 | 869dd16 |