Compare 491 vs 547
| Property | 491 | 547 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4911 | 5471 |
| Prime factorization | 491 | 547 |
| Divisors count | 2 | 2 |
| Divisors | 1, 491 | 1, 547 |
| Number of properties | 7 | 8 |
| Centered heptagonal primes | 5th | |
| Chen primes | 66th | |
| Cousin primes (2nd member) | 26th | |
| Cuban primes 1 | 9th | |
| Harmonic primes | 38th | 42nd |
| Isolated primes | 47th | 52nd |
| Left-truncatable primes | 35th | |
| Long primes | 34th | |
| Primes | 94th | 101st |
| Sexy primes (2nd member) | 48th | |
| Sophie germain primes | 25th | |
| Super primes | 26th | |
| Roman numberals | CDXCI | DXLVII |
| Base 2 | 1111010112 | 10001000112 |
| Base 3 | 2000123 | 2020213 |
| Base 4 | 132234 | 202034 |
| Base 5 | 34315 | 41425 |
| Base 6 | 21356 | 23116 |
| Base 7 | 13017 | 14117 |
| Base 8 | 7538 | 10438 |
| Base 9 | 6059 | 6679 |
| Base 10 | 49110 | 54710 |
| Base 11 | 40711 | 45811 |
| Base 12 | 34b12 | 39712 |
| Base 13 | 2ba13 | 33113 |
| Base 14 | 27114 | 2b114 |
| Base 15 | 22b15 | 26715 |
| Base 16 | 1eb16 | 22316 |