Compare 1811 vs 1867
| Property | 1811 | 1867 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18111 | 18671 |
| Prime factorization | 1811 | 1867 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1811 | 1, 1867 |
| Number of properties | 8 | 12 |
| Additive primes | 149th | |
| Cousin primes (1st member) | 62nd | |
| Dihedral primes | 7th | |
| Emirps | 87th | 90th |
| Good primes | 59th | |
| Harmonic primes | 100th | |
| Isolated primes | 169th | 174th |
| Long primes | 109th | |
| Primes | 280th | 285th |
| Prime quintuplet 1s (1st member) | 3rd | |
| Prime triplets (1st member) | 46th | |
| Sexy primes (1st member) | 121st | |
| Sexy primes (2nd member) | 120th | |
| Sexy prime quadrupletss (2nd member) | 12th | |
| Sexy prime triplets (1st member) | 48th | |
| Sexy prime triplets (2nd member) | 47th | |
| Sophie germain primes | 56th | |
| Roman numberals | MDCCCXI | MDCCCLXVII |
| Base 2 | 111000100112 | 111010010112 |
| Base 3 | 21110023 | 21200113 |
| Base 4 | 1301034 | 1310234 |
| Base 5 | 242215 | 244325 |
| Base 6 | 122156 | 123516 |
| Base 7 | 51657 | 53057 |
| Base 8 | 34238 | 35138 |
| Base 9 | 24329 | 25049 |
| Base 10 | 181110 | 186710 |
| Base 11 | 13a711 | 144811 |
| Base 12 | 106b12 | 10b712 |
| Base 13 | a9413 | b0813 |
| Base 14 | 93514 | 97514 |
| Base 15 | 80b15 | 84715 |
| Base 16 | 71316 | 74b16 |