Compare 6689 vs 6947
| Property | 6689 | 6947 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 66891 | 69471 |
| Prime factorization | 6689 | 6947 |
| Divisors count | 2 | 2 |
| Divisors | 1, 6689 | 1, 6947 |
| Number of properties | 6 | 6 |
| Additive primes | 429th | |
| Chen primes | 470th | 485th |
| Good primes | 135th | 139th |
| Harmonic primes | 326th | |
| Left-truncatable primes | 123rd | |
| Primes | 862nd | 891st |
| Pythagorean primes | 425th | |
| Twin primes (1st member) | 154th | 161st |
| Roman numberals | ||
| Base 2 | 11010001000012 | 11011001000112 |
| Base 3 | 1000112023 | 1001120223 |
| Base 4 | 12202014 | 12302034 |
| Base 5 | 2032245 | 2102425 |
| Base 6 | 505456 | 520556 |
| Base 7 | 253347 | 261537 |
| Base 8 | 150418 | 154438 |
| Base 9 | 101529 | 104689 |
| Base 10 | 668910 | 694710 |
| Base 11 | 503111 | 524611 |
| Base 12 | 3a5512 | 402b12 |
| Base 13 | 307713 | 321513 |
| Base 14 | 261b14 | 276314 |
| Base 15 | 1eae15 | 20d215 |
| Base 16 | 1a2116 | 1b2316 |