Compare 990986 vs 990989
| Property | 990986 | 990989 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 6411 × 7731 | 9909891 |
| Prime factorization | 2 × 641 × 773 | 990989 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 641, 773, 1282, 1546, 495493, 990986 | 1, 990989 |
| Number of properties | 0 | 4 |
| Chen primes | 29726th | |
| Emirps | 10968th | |
| Isolated primes | 61633rd | |
| Primes | 77848th | |
| Roman numberals | ||
| Base 2 | 111100011111000010102 | 111100011111000011012 |
| Base 3 | 12121001010123 | 12121001010223 |
| Base 4 | 33013300224 | 33013300314 |
| Base 5 | 2232024215 | 2232024245 |
| Base 6 | 331235226 | 331235256 |
| Base 7 | 112651137 | 112651167 |
| Base 8 | 36174128 | 36174158 |
| Base 9 | 17703359 | 17703389 |
| Base 10 | 99098610 | 99098910 |
| Base 11 | 6175a711 | 6175aa11 |
| Base 12 | 3b95a212 | 3b95a512 |
| Base 13 | 2890a913 | 2890ac13 |
| Base 14 | 1bb20a14 | 1bb20d14 |
| Base 15 | 14895b15 | 14895e15 |
| Base 16 | f1f0a16 | f1f0d16 |