Compare 1663 vs 1811
| Property | 1663 | 1811 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 16631 | 18111 |
| Prime factorization | 1663 | 1811 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1663 | 1, 1811 |
| Number of properties | 11 | 8 |
| Additive primes | 149th | |
| Cousin primes (1st member) | 59th | |
| Dihedral primes | 7th | |
| Emirps | 87th | |
| Happy primes | 50th | |
| Harmonic primes | 91st | 100th |
| Isolated primes | 158th | 169th |
| Long primes | 102nd | 109th |
| Lucky primes | 62nd | |
| Primes | 261st | 280th |
| Prime triplets (1st member) | 43rd | |
| Sexy primes (1st member) | 113th | |
| Sexy primes (2nd member) | 112th | |
| Sexy prime triplets (2nd member) | 43rd | |
| Sophie germain primes | 56th | |
| Roman numberals | MDCLXIII | MDCCCXI |
| Base 2 | 110011111112 | 111000100112 |
| Base 3 | 20211213 | 21110023 |
| Base 4 | 1213334 | 1301034 |
| Base 5 | 231235 | 242215 |
| Base 6 | 114116 | 122156 |
| Base 7 | 45647 | 51657 |
| Base 8 | 31778 | 34238 |
| Base 9 | 22479 | 24329 |
| Base 10 | 166310 | 181110 |
| Base 11 | 128211 | 13a711 |
| Base 12 | b6712 | 106b12 |
| Base 13 | 9ac13 | a9413 |
| Base 14 | 86b14 | 93514 |
| Base 15 | 75d15 | 80b15 |
| Base 16 | 67f16 | 71316 |