Compare 209 vs 213
| Property | 209 | 213 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 111 × 191 | 31 × 711 |
| Prime factorization | 11 × 19 | 3 × 71 |
| Divisors count | 4 | 4 |
| Divisors | 1, 11, 19, 209 | 1, 3, 71, 213 |
| Number of properties | 1 | 1 |
| Semiprimes | 68th | 69th |
| Roman numberals | CCIX | CCXIII |
| Base 2 | 110100012 | 110101012 |
| Base 3 | 212023 | 212203 |
| Base 4 | 31014 | 31114 |
| Base 5 | 13145 | 13235 |
| Base 6 | 5456 | 5536 |
| Base 7 | 4167 | 4237 |
| Base 8 | 3218 | 3258 |
| Base 9 | 2529 | 2569 |
| Base 10 | 20910 | 21310 |
| Base 11 | 18011 | 18411 |
| Base 12 | 15512 | 15912 |
| Base 13 | 13113 | 13513 |
| Base 14 | 10d14 | 11314 |
| Base 15 | de15 | e315 |
| Base 16 | d116 | d516 |