Compare 6687 vs 6689
| Property | 6687 | 6689 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 32 × 7431 | 66891 |
| Prime factorization | 3 × 3 × 743 | 6689 |
| Divisors count | 6 | 2 |
| Divisors | 1, 3, 9, 743, 2229, 6687 | 1, 6689 |
| Number of properties | 0 | 6 |
| Additive primes | 429th | |
| Chen primes | 470th | |
| Good primes | 135th | |
| Primes | 862nd | |
| Pythagorean primes | 425th | |
| Twin primes (1st member) | 154th | |
| Roman numberals | ||
| Base 2 | 11010000111112 | 11010001000012 |
| Base 3 | 1000112003 | 1000112023 |
| Base 4 | 12201334 | 12202014 |
| Base 5 | 2032225 | 2032245 |
| Base 6 | 505436 | 505456 |
| Base 7 | 253327 | 253347 |
| Base 8 | 150378 | 150418 |
| Base 9 | 101509 | 101529 |
| Base 10 | 668710 | 668910 |
| Base 11 | 502a11 | 503111 |
| Base 12 | 3a5312 | 3a5512 |
| Base 13 | 307513 | 307713 |
| Base 14 | 261914 | 261b14 |
| Base 15 | 1eac15 | 1eae15 |
| Base 16 | 1a1f16 | 1a2116 |