Compare 990805 vs 990809
| Property | 990805 | 990809 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 711 × 27911 | 9908091 |
| Prime factorization | 5 × 71 × 2791 | 990809 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 71, 355, 2791, 13955, 198161, 990805 | 1, 990809 |
| Number of properties | 0 | 3 |
| Isolated primes | 61622nd | |
| Primes | 77835th | |
| Sophie germain primes | 7680th | |
| Roman numberals | ||
| Base 2 | 111100011110010101012 | 111100011110010110012 |
| Base 3 | 12121000101113 | 12121000101223 |
| Base 4 | 33013211114 | 33013211214 |
| Base 5 | 2232012105 | 2232012145 |
| Base 6 | 331230216 | 331230256 |
| Base 7 | 112644347 | 112644417 |
| Base 8 | 36171258 | 36171318 |
| Base 9 | 17701149 | 17701189 |
| Base 10 | 99080510 | 99080910 |
| Base 11 | 61745211 | 61745611 |
| Base 12 | 3b947112 | 3b947512 |
| Base 13 | 288c9a13 | 288ca113 |
| Base 14 | 1bb11b14 | 1bb12114 |
| Base 15 | 14888a15 | 14888e15 |
| Base 16 | f1e5516 | f1e5916 |