Compare 1839 vs 1840
| Property | 1839 | 1840 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 6 |
| Prime factorization | 31 × 6131 | 24 × 51 × 231 |
| Prime factorization | 3 × 613 | 2 × 2 × 2 × 2 × 5 × 23 |
| Divisors count | 4 | 20 |
| Divisors | 1, 3, 613, 1839 | 1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840 |
| Number of properties | 1 | 0 |
| Semiprimes | 530th | |
| Roman numberals | MDCCCXXXIX | MDCCCXL |
| Base 2 | 111001011112 | 111001100002 |
| Base 3 | 21120103 | 21120113 |
| Base 4 | 1302334 | 1303004 |
| Base 5 | 243245 | 243305 |
| Base 6 | 123036 | 123046 |
| Base 7 | 52357 | 52367 |
| Base 8 | 34578 | 34608 |
| Base 9 | 24639 | 24649 |
| Base 10 | 183910 | 184010 |
| Base 11 | 142211 | 142311 |
| Base 12 | 109312 | 109412 |
| Base 13 | ab613 | ab713 |
| Base 14 | 95514 | 95614 |
| Base 15 | 82915 | 82a15 |
| Base 16 | 72f16 | 73016 |