Compare 990385 vs 990389
| Property | 990385 | 990389 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 51 × 112 × 16371 | 9903891 |
| Prime factorization | 5 × 11 × 11 × 1637 | 990389 |
| Divisors count | 12 | 2 |
| Divisors | 1, 5, 11, 55, 121, 605, 1637, 8185, 18007, 90035, 198077, 990385 | 1, 990389 |
| Number of properties | 0 | 6 |
| Chen primes | 29714th | |
| Isolated primes | 61598th | |
| Primes | 77809th | |
| Sexy primes (2nd member) | 16249th | |
| Sexy prime quadrupletss (4th member) | 324th | |
| Sexy prime triplets (3rd member) | 2878th | |
| Roman numberals | ||
| Base 2 | 111100011100101100012 | 111100011100101101012 |
| Base 3 | 12120221122213 | 12120221200023 |
| Base 4 | 33013023014 | 33013023114 |
| Base 5 | 2231430205 | 2231430245 |
| Base 6 | 331210416 | 331210456 |
| Base 7 | 112632647 | 112633017 |
| Base 8 | 36162618 | 36162658 |
| Base 9 | 17684879 | 17685029 |
| Base 10 | 99038510 | 99038910 |
| Base 11 | 61710011 | 61710411 |
| Base 12 | 3b918112 | 3b918512 |
| Base 13 | 288a3613 | 288a3a13 |
| Base 14 | 1bacdb14 | 1bad0114 |
| Base 15 | 1486aa15 | 1486ae15 |
| Base 16 | f1cb116 | f1cb516 |