Compare 1667 vs 1801
| Property | 1667 | 1801 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 16671 | 18011 |
| Prime factorization | 1667 | 1801 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1667 | 1, 1801 |
| Number of properties | 6 | 7 |
| Chen primes | 165th | 174th |
| Cousin primes (2nd member) | 59th | |
| Cuban primes 1 | 13th | |
| Harmonic primes | 92nd | 99th |
| Isolated primes | 168th | |
| Lucky primes | 66th | |
| Primes | 262nd | 279th |
| Prime triplets (2nd member) | 43rd | |
| Pythagorean primes | 136th | |
| Twin primes (1st member) | 53rd | |
| Roman numberals | MDCLXVII | MDCCCI |
| Base 2 | 110100000112 | 111000010012 |
| Base 3 | 20212023 | 21102013 |
| Base 4 | 1220034 | 1300214 |
| Base 5 | 231325 | 242015 |
| Base 6 | 114156 | 122016 |
| Base 7 | 46017 | 51527 |
| Base 8 | 32038 | 34118 |
| Base 9 | 22529 | 24219 |
| Base 10 | 166710 | 180110 |
| Base 11 | 128611 | 139811 |
| Base 12 | b6b12 | 106112 |
| Base 13 | 9b313 | a8713 |
| Base 14 | 87114 | 92914 |
| Base 15 | 76215 | 80115 |
| Base 16 | 68316 | 70916 |