Compare 813 vs 819
| Property | 813 | 819 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 31 × 2711 | 32 × 71 × 131 |
| Prime factorization | 3 × 271 | 3 × 3 × 7 × 13 |
| Divisors count | 4 | 12 |
| Divisors | 1, 3, 271, 813 | 1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819 |
| Number of properties | 1 | 0 |
| Semiprimes | 246th | |
| Roman numberals | DCCCXIII | DCCCXIX |
| Base 2 | 11001011012 | 11001100112 |
| Base 3 | 10100103 | 10101003 |
| Base 4 | 302314 | 303034 |
| Base 5 | 112235 | 112345 |
| Base 6 | 34336 | 34436 |
| Base 7 | 22417 | 22507 |
| Base 8 | 14558 | 14638 |
| Base 9 | 11039 | 11109 |
| Base 10 | 81310 | 81910 |
| Base 11 | 67a11 | 68511 |
| Base 12 | 57912 | 58312 |
| Base 13 | 4a713 | 4b013 |
| Base 14 | 42114 | 42714 |
| Base 15 | 39315 | 39915 |
| Base 16 | 32d16 | 33316 |