Compare 1811 vs 1973
| Property | 1811 | 1973 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18111 | 19731 |
| Prime factorization | 1811 | 1973 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1811 | 1, 1973 |
| Number of properties | 8 | 7 |
| Additive primes | 149th | |
| Dihedral primes | 7th | |
| Emirps | 87th | |
| Good primes | 61st | |
| Harmonic primes | 100th | 111th |
| Isolated primes | 169th | 179th |
| Long primes | 109th | |
| Primes | 280th | 298th |
| Pythagorean primes | 145th | |
| Sexy primes (1st member) | 126th | |
| Sophie germain primes | 56th | 60th |
| Roman numberals | MDCCCXI | MCMLXXIII |
| Base 2 | 111000100112 | 111101101012 |
| Base 3 | 21110023 | 22010023 |
| Base 4 | 1301034 | 1323114 |
| Base 5 | 242215 | 303435 |
| Base 6 | 122156 | 130456 |
| Base 7 | 51657 | 55167 |
| Base 8 | 34238 | 36658 |
| Base 9 | 24329 | 26329 |
| Base 10 | 181110 | 197310 |
| Base 11 | 13a711 | 153411 |
| Base 12 | 106b12 | 118512 |
| Base 13 | a9413 | b8a13 |
| Base 14 | 93514 | a0d14 |
| Base 15 | 80b15 | 8b815 |
| Base 16 | 71316 | 7b516 |