Compare 1909 vs 1943
| Property | 1909 | 1943 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 231 × 831 | 291 × 671 |
| Prime factorization | 23 × 83 | 29 × 67 |
| Divisors count | 4 | 4 |
| Divisors | 1, 23, 83, 1909 | 1, 29, 67, 1943 |
| Number of properties | 1 | 1 |
| Semiprimes | 549th | 561st |
| Roman numberals | MCMIX | MCMXLIII |
| Base 2 | 111011101012 | 111100101112 |
| Base 3 | 21212013 | 21222223 |
| Base 4 | 1313114 | 1321134 |
| Base 5 | 301145 | 302335 |
| Base 6 | 125016 | 125556 |
| Base 7 | 53657 | 54447 |
| Base 8 | 35658 | 36278 |
| Base 9 | 25519 | 25889 |
| Base 10 | 190910 | 194310 |
| Base 11 | 148611 | 150711 |
| Base 12 | 113112 | 115b12 |
| Base 13 | b3b13 | b6613 |
| Base 14 | 9a514 | 9cb14 |
| Base 15 | 87415 | 89815 |
| Base 16 | 77516 | 79716 |