Compare 1805 vs 1807
| Property | 1805 | 1807 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 51 × 192 | 131 × 1391 |
| Prime factorization | 5 × 19 × 19 | 13 × 139 |
| Divisors count | 6 | 4 |
| Divisors | 1, 5, 19, 95, 361, 1805 | 1, 13, 139, 1807 |
| Number of properties | 0 | 1 |
| Semiprimes | 520th | |
| Roman numberals | MDCCCV | MDCCCVII |
| Base 2 | 111000011012 | 111000011112 |
| Base 3 | 21102123 | 21102213 |
| Base 4 | 1300314 | 1300334 |
| Base 5 | 242105 | 242125 |
| Base 6 | 122056 | 122116 |
| Base 7 | 51567 | 51617 |
| Base 8 | 34158 | 34178 |
| Base 9 | 24259 | 24279 |
| Base 10 | 180510 | 180710 |
| Base 11 | 13a111 | 13a311 |
| Base 12 | 106512 | 106712 |
| Base 13 | a8b13 | a9013 |
| Base 14 | 92d14 | 93114 |
| Base 15 | 80515 | 80715 |
| Base 16 | 70d16 | 70f16 |