Compare 1801 vs 1811
| Property | 1801 | 1811 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18011 | 18111 |
| Prime factorization | 1801 | 1811 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1801 | 1, 1811 |
| Number of properties | 7 | 8 |
| Additive primes | 149th | |
| Chen primes | 174th | |
| Cuban primes 1 | 13th | |
| Dihedral primes | 7th | |
| Emirps | 87th | |
| Harmonic primes | 99th | 100th |
| Isolated primes | 168th | 169th |
| Long primes | 109th | |
| Lucky primes | 66th | |
| Primes | 279th | 280th |
| Pythagorean primes | 136th | |
| Sophie germain primes | 56th | |
| Roman numberals | MDCCCI | MDCCCXI |
| Base 2 | 111000010012 | 111000100112 |
| Base 3 | 21102013 | 21110023 |
| Base 4 | 1300214 | 1301034 |
| Base 5 | 242015 | 242215 |
| Base 6 | 122016 | 122156 |
| Base 7 | 51527 | 51657 |
| Base 8 | 34118 | 34238 |
| Base 9 | 24219 | 24329 |
| Base 10 | 180110 | 181110 |
| Base 11 | 139811 | 13a711 |
| Base 12 | 106112 | 106b12 |
| Base 13 | a8713 | a9413 |
| Base 14 | 92914 | 93514 |
| Base 15 | 80115 | 80b15 |
| Base 16 | 70916 | 71316 |