Compare 809 vs 1031
| Property | 809 | 1031 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8091 | 10311 |
| Prime factorization | 809 | 1031 |
| Divisors count | 2 | 2 |
| Divisors | 1, 809 | 1, 1031 |
| Number of properties | 7 | 9 |
| Additive primes | 74th | 92nd |
| Chen primes | 95th | 118th |
| Emirps | 39th | |
| Good primes | 39th | 46th |
| Primes | 140th | 173rd |
| Pythagorean primes | 68th | |
| Solinas primes | 47th | |
| Sophie germain primes | 35th | 40th |
| Super primes | 40th | |
| Twin primes (1st member) | 31st | 37th |
| Roman numberals | DCCCIX | MXXXI |
| Base 2 | 11001010012 | 100000001112 |
| Base 3 | 10022223 | 11020123 |
| Base 4 | 302214 | 1000134 |
| Base 5 | 112145 | 131115 |
| Base 6 | 34256 | 44356 |
| Base 7 | 22347 | 30027 |
| Base 8 | 14518 | 20078 |
| Base 9 | 10889 | 13659 |
| Base 10 | 80910 | 103110 |
| Base 11 | 67611 | 85811 |
| Base 12 | 57512 | 71b12 |
| Base 13 | 4a313 | 61413 |
| Base 14 | 41b14 | 53914 |
| Base 15 | 38e15 | 48b15 |
| Base 16 | 32916 | 40716 |