Compare 991999 vs 992021
| Property | 991999 | 992021 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9919991 | 9920211 |
| Prime factorization | 991999 | 992021 |
| Divisors count | 2 | 2 |
| Divisors | 1, 991999 | 1, 992021 |
| Number of properties | 4 | 7 |
| Additive primes | 29907th | |
| Chen primes | 29752nd | |
| Emirps | 10999th | 11000th |
| Isolated primes | 61702nd | |
| Lucky primes | 8558th | |
| Primes | 77927th | 77929th |
| Sophie germain primes | 7690th | |
| Super primes | 7656th | |
| Twin primes (1st member) | 8114th | |
| Roman numberals | ||
| Base 2 | 111100100010111111112 | 111100100011000101012 |
| Base 3 | 12121012022013 | 12121012101123 |
| Base 4 | 33020233334 | 33020301114 |
| Base 5 | 2232204445 | 2232210415 |
| Base 6 | 331323316 | 331324056 |
| Base 7 | 113010617 | 113011227 |
| Base 8 | 36213778 | 36214258 |
| Base 9 | 17716819 | 17717159 |
| Base 10 | 99199910 | 99202110 |
| Base 11 | 61833811 | 61835811 |
| Base 12 | 3ba0a712 | 3ba10512 |
| Base 13 | 2896a813 | 2896c413 |
| Base 14 | 1bb73114 | 1bb74914 |
| Base 15 | 148dd415 | 148deb15 |
| Base 16 | f22ff16 | f231516 |