Compare 990989 vs 991027
| Property | 990989 | 991027 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9909891 | 9910271 |
| Prime factorization | 990989 | 991027 |
| Divisors count | 2 | 2 |
| Divisors | 1, 990989 | 1, 991027 |
| Number of properties | 4 | 3 |
| Chen primes | 29726th | |
| Cousin primes (1st member) | 8093rd | |
| Emirps | 10968th | |
| Isolated primes | 61633rd | 61635th |
| Primes | 77848th | 77850th |
| Roman numberals | ||
| Base 2 | 111100011111000011012 | 111100011111001100112 |
| Base 3 | 12121001010223 | 12121001022013 |
| Base 4 | 33013300314 | 33013303034 |
| Base 5 | 2232024245 | 2232031025 |
| Base 6 | 331235256 | 331240316 |
| Base 7 | 112651167 | 112652027 |
| Base 8 | 36174158 | 36174638 |
| Base 9 | 17703389 | 17703819 |
| Base 10 | 99098910 | 99102710 |
| Base 11 | 6175aa11 | 61763411 |
| Base 12 | 3b95a512 | 3b961712 |
| Base 13 | 2890ac13 | 28910b13 |
| Base 14 | 1bb20d14 | 1bb23914 |
| Base 15 | 14895e15 | 14898715 |
| Base 16 | f1f0d16 | f1f3316 |