Compare 807 vs 809
| Property | 807 | 809 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 2691 | 8091 |
| Prime factorization | 3 × 269 | 809 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 269, 807 | 1, 809 |
| Number of properties | 1 | 7 |
| Additive primes | 74th | |
| Chen primes | 95th | |
| Good primes | 39th | |
| Primes | 140th | |
| Pythagorean primes | 68th | |
| Semiprimes | 245th | |
| Sophie germain primes | 35th | |
| Twin primes (1st member) | 31st | |
| Roman numberals | DCCCVII | DCCCIX |
| Base 2 | 11001001112 | 11001010012 |
| Base 3 | 10022203 | 10022223 |
| Base 4 | 302134 | 302214 |
| Base 5 | 112125 | 112145 |
| Base 6 | 34236 | 34256 |
| Base 7 | 22327 | 22347 |
| Base 8 | 14478 | 14518 |
| Base 9 | 10869 | 10889 |
| Base 10 | 80710 | 80910 |
| Base 11 | 67411 | 67611 |
| Base 12 | 57312 | 57512 |
| Base 13 | 4a113 | 4a313 |
| Base 14 | 41914 | 41b14 |
| Base 15 | 38c15 | 38e15 |
| Base 16 | 32716 | 32916 |