Compare 2686 vs 2687
| Property | 2686 | 2687 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 171 × 791 | 26871 |
| Prime factorization | 2 × 17 × 79 | 2687 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 17, 34, 79, 158, 1343, 2686 | 1, 2687 |
| Number of properties | 0 | 11 |
| Additive primes | 205th | |
| Chen primes | 234th | |
| Cousin primes (2nd member) | 80th | |
| Good primes | 79th | |
| Long primes | 156th | |
| Primes | 390th | |
| Prime triplets (1st member) | 59th | |
| Prime triplets (2nd member) | 58th | |
| Sexy primes (1st member) | 158th | |
| Sexy prime triplets (1st member) | 58th | |
| Twin primes (1st member) | 76th | |
| Roman numberals | MMDCLXXXVI | MMDCLXXXVII |
| Base 2 | 1010011111102 | 1010011111112 |
| Base 3 | 102001113 | 102001123 |
| Base 4 | 2213324 | 2213334 |
| Base 5 | 412215 | 412225 |
| Base 6 | 202346 | 202356 |
| Base 7 | 105557 | 105567 |
| Base 8 | 51768 | 51778 |
| Base 9 | 36149 | 36159 |
| Base 10 | 268610 | 268710 |
| Base 11 | 202211 | 202311 |
| Base 12 | 167a12 | 167b12 |
| Base 13 | 12b813 | 12b913 |
| Base 14 | d9c14 | d9d14 |
| Base 15 | be115 | be215 |
| Base 16 | a7e16 | a7f16 |