Compare 206909 vs 206915
| Property | 206909 | 206915 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 2069091 | 51 × 291 × 14271 |
| Prime factorization | 206909 | 5 × 29 × 1427 |
| Divisors count | 2 | 8 |
| Divisors | 1, 206909 | 1, 5, 29, 145, 1427, 7135, 41383, 206915 |
| Number of properties | 6 | 0 |
| Chen primes | 7751st | |
| Good primes | 1045th | |
| Primes | 18539th | |
| Pythagorean primes | 9250th | |
| Super primes | 2123rd | |
| Twin primes (1st member) | 2219th | |
| Roman numberals | ||
| Base 2 | 1100101000001111012 | 1100101000010000112 |
| Base 3 | 1011112110223 | 1011112111123 |
| Base 4 | 3022003314 | 3022010034 |
| Base 5 | 231101145 | 231101305 |
| Base 6 | 42335256 | 42335356 |
| Base 7 | 15211437 | 15211527 |
| Base 8 | 6240758 | 6241038 |
| Base 9 | 3447389 | 3447459 |
| Base 10 | 20690910 | 20691510 |
| Base 11 | 1314aa11 | 13150511 |
| Base 12 | 9b8a512 | 9b8ab12 |
| Base 13 | 7324113 | 7324713 |
| Base 14 | 5559314 | 5559914 |
| Base 15 | 4148e15 | 4149515 |
| Base 16 | 3283d16 | 3284316 |