Compare 1663 vs 1823
| Property | 1663 | 1823 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 16631 | 18231 |
| Prime factorization | 1663 | 1823 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1663 | 1, 1823 |
| Number of properties | 11 | 6 |
| Cousin primes (1st member) | 59th | |
| Happy primes | 50th | |
| Harmonic primes | 91st | |
| Isolated primes | 158th | 170th |
| Left-truncatable primes | 61st | |
| Long primes | 102nd | 110th |
| Lucky primes | 62nd | |
| Primes | 261st | 281st |
| Prime triplets (1st member) | 43rd | |
| Safe primes | 36th | |
| Sexy primes (1st member) | 113th | |
| Sexy primes (2nd member) | 112th | |
| Sexy prime triplets (2nd member) | 43rd | |
| Super primes | 60th | |
| Roman numberals | MDCLXIII | MDCCCXXIII |
| Base 2 | 110011111112 | 111000111112 |
| Base 3 | 20211213 | 21111123 |
| Base 4 | 1213334 | 1301334 |
| Base 5 | 231235 | 242435 |
| Base 6 | 114116 | 122356 |
| Base 7 | 45647 | 52137 |
| Base 8 | 31778 | 34378 |
| Base 9 | 22479 | 24459 |
| Base 10 | 166310 | 182310 |
| Base 11 | 128211 | 140811 |
| Base 12 | b6712 | 107b12 |
| Base 13 | 9ac13 | aa313 |
| Base 14 | 86b14 | 94314 |
| Base 15 | 75d15 | 81815 |
| Base 16 | 67f16 | 71f16 |