Compare 991909 vs 991927
| Property | 991909 | 991927 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9919091 | 9919271 |
| Prime factorization | 991909 | 991927 |
| Divisors count | 2 | 2 |
| Divisors | 1, 991909 | 1, 991927 |
| Number of properties | 3 | 7 |
| Additive primes | 29903rd | 29904th |
| Chen primes | 29747th | |
| Cousin primes (1st member) | 8097th | |
| Emirps | 10992nd | |
| Isolated primes | 61693rd | 61694th |
| Lucky primes | 8557th | |
| Primes | 77916th | 77917th |
| Roman numberals | ||
| Base 2 | 111100100010101001012 | 111100100010101101112 |
| Base 3 | 12121011221013 | 12121012000013 |
| Base 4 | 33020222114 | 33020223134 |
| Base 5 | 2232201145 | 2232202025 |
| Base 6 | 331321016 | 331321316 |
| Base 7 | 113006027 | 113006267 |
| Base 8 | 36212458 | 36212678 |
| Base 9 | 17715719 | 17716019 |
| Base 10 | 99190910 | 99192710 |
| Base 11 | 61826611 | 61828211 |
| Base 12 | 3ba03112 | 3ba04712 |
| Base 13 | 28963913 | 28965113 |
| Base 14 | 1bb6a914 | 1bb6bd14 |
| Base 15 | 148d7415 | 148d8715 |
| Base 16 | f22a516 | f22b716 |