Compare 42487 vs 42491
| Property | 42487 | 42491 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 424871 | 424911 |
| Prime factorization | 42487 | 42491 |
| Divisors count | 2 | 2 |
| Divisors | 1, 42487 | 1, 42491 |
| Number of properties | 5 | 5 |
| Chen primes | 2083rd | |
| Cousin primes (1st member) | 615th | |
| Cousin primes (2nd member) | 615th | |
| Harmonic primes | 1653rd | 1654th |
| Isolated primes | 3210th | 3211th |
| Long primes | 1671st | |
| Primes | 4445th | 4446th |
| Roman numberals | ||
| Base 2 | 10100101111101112 | 10100101111110112 |
| Base 3 | 20110211213 | 20110212023 |
| Base 4 | 221133134 | 221133234 |
| Base 5 | 23244225 | 23244315 |
| Base 6 | 5244116 | 5244156 |
| Base 7 | 2346047 | 2346117 |
| Base 8 | 1227678 | 1227738 |
| Base 9 | 642479 | 642529 |
| Base 10 | 4248710 | 4249110 |
| Base 11 | 29a1511 | 29a1911 |
| Base 12 | 2070712 | 2070b12 |
| Base 13 | 1645313 | 1645713 |
| Base 14 | 116ab14 | 116b114 |
| Base 15 | c8c715 | c8cb15 |
| Base 16 | a5f716 | a5fb16 |