Compare 491 vs 491
| Property | 491 | 491 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4911 | 4911 |
| Prime factorization | 491 | 491 |
| Divisors count | 2 | 2 |
| Divisors | 1, 491 | 1, 491 |
| Number of properties | 7 | 7 |
| Chen primes | 66th | 66th |
| Cousin primes (2nd member) | 26th | 26th |
| Harmonic primes | 38th | 38th |
| Isolated primes | 47th | 47th |
| Long primes | 34th | 34th |
| Primes | 94th | 94th |
| Sophie germain primes | 25th | 25th |
| Roman numberals | CDXCI | CDXCI |
| Base 2 | 1111010112 | 1111010112 |
| Base 3 | 2000123 | 2000123 |
| Base 4 | 132234 | 132234 |
| Base 5 | 34315 | 34315 |
| Base 6 | 21356 | 21356 |
| Base 7 | 13017 | 13017 |
| Base 8 | 7538 | 7538 |
| Base 9 | 6059 | 6059 |
| Base 10 | 49110 | 49110 |
| Base 11 | 40711 | 40711 |
| Base 12 | 34b12 | 34b12 |
| Base 13 | 2ba13 | 2ba13 |
| Base 14 | 27114 | 27114 |
| Base 15 | 22b15 | 22b15 |
| Base 16 | 1eb16 | 1eb16 |