Compare 1811 vs 1823
| Property | 1811 | 1823 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18111 | 18231 |
| Prime factorization | 1811 | 1823 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1811 | 1, 1823 |
| Number of properties | 8 | 6 |
| Additive primes | 149th | |
| Dihedral primes | 7th | |
| Emirps | 87th | |
| Harmonic primes | 100th | |
| Isolated primes | 169th | 170th |
| Left-truncatable primes | 61st | |
| Long primes | 109th | 110th |
| Primes | 280th | 281st |
| Safe primes | 36th | |
| Sophie germain primes | 56th | |
| Super primes | 60th | |
| Roman numberals | MDCCCXI | MDCCCXXIII |
| Base 2 | 111000100112 | 111000111112 |
| Base 3 | 21110023 | 21111123 |
| Base 4 | 1301034 | 1301334 |
| Base 5 | 242215 | 242435 |
| Base 6 | 122156 | 122356 |
| Base 7 | 51657 | 52137 |
| Base 8 | 34238 | 34378 |
| Base 9 | 24329 | 24459 |
| Base 10 | 181110 | 182310 |
| Base 11 | 13a711 | 140811 |
| Base 12 | 106b12 | 107b12 |
| Base 13 | a9413 | aa313 |
| Base 14 | 93514 | 94314 |
| Base 15 | 80b15 | 81815 |
| Base 16 | 71316 | 71f16 |