Compare 1667 vs 1671
| Property | 1667 | 1671 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 16671 | 31 × 5571 |
| Prime factorization | 1667 | 3 × 557 |
| Divisors count | 2 | 4 |
| Divisors | 1, 1667 | 1, 3, 557, 1671 |
| Number of properties | 6 | 1 |
| Chen primes | 165th | |
| Cousin primes (2nd member) | 59th | |
| Harmonic primes | 92nd | |
| Primes | 262nd | |
| Prime triplets (2nd member) | 43rd | |
| Semiprimes | 480th | |
| Twin primes (1st member) | 53rd | |
| Roman numberals | MDCLXVII | MDCLXXI |
| Base 2 | 110100000112 | 110100001112 |
| Base 3 | 20212023 | 20212203 |
| Base 4 | 1220034 | 1220134 |
| Base 5 | 231325 | 231415 |
| Base 6 | 114156 | 114236 |
| Base 7 | 46017 | 46057 |
| Base 8 | 32038 | 32078 |
| Base 9 | 22529 | 22569 |
| Base 10 | 166710 | 167110 |
| Base 11 | 128611 | 128a11 |
| Base 12 | b6b12 | b7312 |
| Base 13 | 9b313 | 9b713 |
| Base 14 | 87114 | 87514 |
| Base 15 | 76215 | 76615 |
| Base 16 | 68316 | 68716 |