Compare 1666 vs 1669
Property | 1666 | 1669 |
---|---|---|
Type | composite number | prime |
Unique factors | 3 | 1 |
Total factors | 4 | 1 |
Prime factorization | 21 × 72 × 171 | 16691 |
Prime factorization | 2 × 7 × 7 × 17 | 1669 |
Divisors count | 12 | 2 |
Divisors | 1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666 | 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 | MDCLXVI | MDCLXIX |
Base 2 | 110100000102 | 110100001012 |
Base 3 | 20212013 | 20212113 |
Base 4 | 1220024 | 1220114 |
Base 5 | 231315 | 231345 |
Base 6 | 114146 | 114216 |
Base 7 | 46007 | 46037 |
Base 8 | 32028 | 32058 |
Base 9 | 22519 | 22549 |
Base 10 | 166610 | 166910 |
Base 11 | 128511 | 128811 |
Base 12 | b6a12 | b7112 |
Base 13 | 9b213 | 9b513 |
Base 14 | 87014 | 87314 |
Base 15 | 76115 | 76415 |
Base 16 | 68216 | 68516 |