Compare 511151 vs 511157
| Property | 511151 | 511157 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 5111511 | 191 × 269031 |
| Prime factorization | 511151 | 19 × 26903 |
| Divisors count | 2 | 4 |
| Divisors | 1, 511151 | 1, 19, 26903, 511157 |
| Number of properties | 4 | 1 |
| Chen primes | 16810th | |
| Primes | 42375th | |
| Semiprimes | 110640th | |
| Sophie germain primes | 4401st | |
| Twin primes (1st member) | 4644th | |
| Roman numberals | ||
| Base 2 | 11111001100101011112 | 11111001100101101012 |
| Base 3 | 2212220111123 | 2212220112023 |
| Base 4 | 13303022334 | 13303023114 |
| Base 5 | 1123241015 | 1123241125 |
| Base 6 | 145422356 | 145422456 |
| Base 7 | 42261447 | 42261537 |
| Base 8 | 17462578 | 17462658 |
| Base 9 | 8581459 | 8581529 |
| Base 10 | 51115110 | 51115710 |
| Base 11 | 31a04311 | 31a04911 |
| Base 12 | 20797b12 | 20798512 |
| Base 13 | 14b87413 | 14b87a13 |
| Base 14 | d43cb14 | d43d314 |
| Base 15 | a16bb15 | a16c215 |
| Base 16 | 7ccaf16 | 7ccb516 |