Compare 6209 vs 6221
| Property | 6209 | 6221 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 8871 | 62211 |
| Prime factorization | 7 × 887 | 6221 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 887, 6209 | 1, 6221 |
| Number of properties | 1 | 6 |
| Additive primes | 407th | |
| Cousin primes (2nd member) | 145th | |
| Isolated primes | 519th | |
| Long primes | 312th | |
| Primes | 810th | |
| Pythagorean primes | 396th | |
| Semiprimes | 1677th | |
| Roman numberals | ||
| Base 2 | 11000010000012 | 11000010011012 |
| Base 3 | 221112223 | 221121023 |
| Base 4 | 12010014 | 12010314 |
| Base 5 | 1443145 | 1443415 |
| Base 6 | 444256 | 444456 |
| Base 7 | 240507 | 240657 |
| Base 8 | 141018 | 141158 |
| Base 9 | 84589 | 84729 |
| Base 10 | 620910 | 622110 |
| Base 11 | 473511 | 474611 |
| Base 12 | 371512 | 372512 |
| Base 13 | 2a9813 | 2aa713 |
| Base 14 | 239714 | 23a514 |
| Base 15 | 1c8e15 | 1c9b15 |
| Base 16 | 184116 | 184d16 |