Compare 1811 vs 1949
| Property | 1811 | 1949 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18111 | 19491 |
| Prime factorization | 1811 | 1949 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1811 | 1, 1949 |
| Number of properties | 8 | 8 |
| Additive primes | 149th | 156th |
| Chen primes | 183rd | |
| Dihedral primes | 7th | |
| Emirps | 87th | 95th |
| Harmonic primes | 100th | 110th |
| Isolated primes | 169th | |
| Long primes | 109th | 115th |
| Primes | 280th | 296th |
| Pythagorean primes | 144th | |
| Sophie germain primes | 56th | |
| Twin primes (1st member) | 60th | |
| Roman numberals | MDCCCXI | MCMXLIX |
| Base 2 | 111000100112 | 111100111012 |
| Base 3 | 21110023 | 22000123 |
| Base 4 | 1301034 | 1321314 |
| Base 5 | 242215 | 302445 |
| Base 6 | 122156 | 130056 |
| Base 7 | 51657 | 54537 |
| Base 8 | 34238 | 36358 |
| Base 9 | 24329 | 26059 |
| Base 10 | 181110 | 194910 |
| Base 11 | 13a711 | 151211 |
| Base 12 | 106b12 | 116512 |
| Base 13 | a9413 | b6c13 |
| Base 14 | 93514 | 9d314 |
| Base 15 | 80b15 | 89e15 |
| Base 16 | 71316 | 79d16 |