Compare 991999 vs 992005
| Property | 991999 | 992005 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 4 |
| Prime factorization | 9919991 | 51 × 72 × 40491 |
| Prime factorization | 991999 | 5 × 7 × 7 × 4049 |
| Divisors count | 2 | 12 |
| Divisors | 1, 991999 | 1, 5, 7, 35, 49, 245, 4049, 20245, 28343, 141715, 198401, 992005 |
| Number of properties | 4 | 0 |
| Emirps | 10999th | |
| Isolated primes | 61702nd | |
| Lucky primes | 8558th | |
| Primes | 77927th | |
| Roman numberals | ||
| Base 2 | 111100100010111111112 | 111100100011000001012 |
| Base 3 | 12121012022013 | 12121012022213 |
| Base 4 | 33020233334 | 33020300114 |
| Base 5 | 2232204445 | 2232210105 |
| Base 6 | 331323316 | 331323416 |
| Base 7 | 113010617 | 113011007 |
| Base 8 | 36213778 | 36214058 |
| Base 9 | 17716819 | 17716879 |
| Base 10 | 99199910 | 99200510 |
| Base 11 | 61833811 | 61834311 |
| Base 12 | 3ba0a712 | 3ba0b112 |
| Base 13 | 2896a813 | 2896b113 |
| Base 14 | 1bb73114 | 1bb73714 |
| Base 15 | 148dd415 | 148dda15 |
| Base 16 | f22ff16 | f230516 |