Compare 991909 vs 992021
| Property | 991909 | 992021 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9919091 | 9920211 |
| Prime factorization | 991909 | 992021 |
| Divisors count | 2 | 2 |
| Divisors | 1, 991909 | 1, 992021 |
| Number of properties | 3 | 7 |
| Additive primes | 29903rd | 29907th |
| Chen primes | 29752nd | |
| Emirps | 11000th | |
| Isolated primes | 61693rd | |
| Primes | 77916th | 77929th |
| Sophie germain primes | 7690th | |
| Super primes | 7656th | |
| Twin primes (1st member) | 8114th | |
| Roman numberals | ||
| Base 2 | 111100100010101001012 | 111100100011000101012 |
| Base 3 | 12121011221013 | 12121012101123 |
| Base 4 | 33020222114 | 33020301114 |
| Base 5 | 2232201145 | 2232210415 |
| Base 6 | 331321016 | 331324056 |
| Base 7 | 113006027 | 113011227 |
| Base 8 | 36212458 | 36214258 |
| Base 9 | 17715719 | 17717159 |
| Base 10 | 99190910 | 99202110 |
| Base 11 | 61826611 | 61835811 |
| Base 12 | 3ba03112 | 3ba10512 |
| Base 13 | 28963913 | 2896c413 |
| Base 14 | 1bb6a914 | 1bb74914 |
| Base 15 | 148d7415 | 148deb15 |
| Base 16 | f22a516 | f231516 |