Compare 257942 vs 257947
| Property | 257942 | 257947 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 1289711 | 2579471 |
| Prime factorization | 2 × 128971 | 257947 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 128971, 257942 | 1, 257947 |
| Number of properties | 1 | 3 |
| Isolated primes | 17373rd | |
| Primes | 22670th | |
| Semiprimes | 57634th | |
| Sexy primes (1st member) | 5278th | |
| Roman numberals | ||
| Base 2 | 1111101111100101102 | 1111101111100110112 |
| Base 3 | 1110022111023 | 1110022111213 |
| Base 4 | 3323321124 | 3323321234 |
| Base 5 | 312232325 | 312232425 |
| Base 6 | 53101026 | 53101116 |
| Base 7 | 21230067 | 21230147 |
| Base 8 | 7676268 | 7676338 |
| Base 9 | 4327429 | 4327479 |
| Base 10 | 25794210 | 25794710 |
| Base 11 | 16688311 | 16688811 |
| Base 12 | 10533212 | 10533712 |
| Base 13 | 9053913 | 9054113 |
| Base 14 | 6a00614 | 6a00b14 |
| Base 15 | 5166215 | 5166715 |
| Base 16 | 3ef9616 | 3ef9b16 |