Compare 1659 vs 1669
| Property | 1659 | 1669 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 71 × 791 | 16691 |
| Prime factorization | 3 × 7 × 79 | 1669 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 7, 21, 79, 237, 553, 1659 | 1, 1669 |
| Number of properties | 0 | 9 |
| Chen primes | 166th | |
| Emirps | 81st | |
| Primes | 263rd | |
| Prime triplets (3rd member) | 43rd | |
| Pythagorean primes | 126th | |
| Sexy primes (2nd member) | 113th | |
| Sexy prime triplets (3rd member) | 43rd | |
| Super primes | 56th | |
| Twin primes (2nd member) | 53rd | |
| Roman numberals | MDCLIX | MDCLXIX |
| Base 2 | 110011110112 | 110100001012 |
| Base 3 | 20211103 | 20212113 |
| Base 4 | 1213234 | 1220114 |
| Base 5 | 231145 | 231345 |
| Base 6 | 114036 | 114216 |
| Base 7 | 45607 | 46037 |
| Base 8 | 31738 | 32058 |
| Base 9 | 22439 | 22549 |
| Base 10 | 165910 | 166910 |
| Base 11 | 127911 | 128811 |
| Base 12 | b6312 | b7112 |
| Base 13 | 9a813 | 9b513 |
| Base 14 | 86714 | 87314 |
| Base 15 | 75915 | 76415 |
| Base 16 | 67b16 | 68516 |