Compare 991381 vs 991999
| Property | 991381 | 991999 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9913811 | 9919991 |
| Prime factorization | 991381 | 991999 |
| Divisors count | 2 | 2 |
| Divisors | 1, 991381 | 1, 991999 |
| Number of properties | 5 | 4 |
| Additive primes | 29888th | |
| Emirps | 10999th | |
| Isolated primes | 61659th | 61702nd |
| Lucky primes | 8548th | 8558th |
| Primes | 77876th | 77927th |
| Sexy primes (1st member) | 16270th | |
| Roman numberals | ||
| Base 2 | 111100100000100101012 | 111100100010111111112 |
| Base 3 | 12121002202113 | 12121012022013 |
| Base 4 | 33020021114 | 33020233334 |
| Base 5 | 2232110115 | 2232204445 |
| Base 6 | 331254216 | 331323316 |
| Base 7 | 112662167 | 113010617 |
| Base 8 | 36202258 | 36213778 |
| Base 9 | 17708249 | 17716819 |
| Base 10 | 99138110 | 99199910 |
| Base 11 | 61792611 | 61833811 |
| Base 12 | 3b987112 | 3ba0a712 |
| Base 13 | 28932113 | 2896a813 |
| Base 14 | 1bb40d14 | 1bb73114 |
| Base 15 | 148b2115 | 148dd415 |
| Base 16 | f209516 | f22ff16 |