Compare 1663 vs 1801
| Property | 1663 | 1801 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 16631 | 18011 |
| Prime factorization | 1663 | 1801 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1663 | 1, 1801 |
| Number of properties | 11 | 7 |
| Chen primes | 174th | |
| Cousin primes (1st member) | 59th | |
| Cuban primes 1 | 13th | |
| Happy primes | 50th | |
| Harmonic primes | 91st | 99th |
| Isolated primes | 158th | 168th |
| Long primes | 102nd | |
| Lucky primes | 62nd | 66th |
| Primes | 261st | 279th |
| Prime triplets (1st member) | 43rd | |
| Pythagorean primes | 136th | |
| Sexy primes (1st member) | 113th | |
| Sexy primes (2nd member) | 112th | |
| Sexy prime triplets (2nd member) | 43rd | |
| Roman numberals | MDCLXIII | MDCCCI |
| Base 2 | 110011111112 | 111000010012 |
| Base 3 | 20211213 | 21102013 |
| Base 4 | 1213334 | 1300214 |
| Base 5 | 231235 | 242015 |
| Base 6 | 114116 | 122016 |
| Base 7 | 45647 | 51527 |
| Base 8 | 31778 | 34118 |
| Base 9 | 22479 | 24219 |
| Base 10 | 166310 | 180110 |
| Base 11 | 128211 | 139811 |
| Base 12 | b6712 | 106112 |
| Base 13 | 9ac13 | a8713 |
| Base 14 | 86b14 | 92914 |
| Base 15 | 75d15 | 80115 |
| Base 16 | 67f16 | 70916 |