Compare 990001 vs 990009
| Property | 990001 | 990009 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 5 |
| Prime factorization | 9900011 | 33 × 371 × 9911 |
| Prime factorization | 990001 | 3 × 3 × 3 × 37 × 991 |
| Divisors count | 2 | 16 |
| Divisors | 1, 990001 | 1, 3, 9, 27, 37, 111, 333, 991, 999, 2973, 8919, 26757, 36667, 110001, 330003, 990009 |
| Number of properties | 3 | 0 |
| Additive primes | 29855th | |
| Primes | 77778th | |
| Twin primes (2nd member) | 8102nd | |
| Roman numberals | ||
| Base 2 | 111100011011001100012 | 111100011011001110012 |
| Base 3 | 12120220002013 | 12120220010003 |
| Base 4 | 33012303014 | 33012303214 |
| Base 5 | 2231400015 | 2231400145 |
| Base 6 | 331152016 | 331152136 |
| Base 7 | 112622057 | 112622167 |
| Base 8 | 36154618 | 36154718 |
| Base 9 | 17680219 | 17680309 |
| Base 10 | 99000110 | 99000910 |
| Base 11 | 61689111 | 61689911 |
| Base 12 | 3b8b0112 | 3b8b0912 |
| Base 13 | 2887cc13 | 28880713 |
| Base 14 | 1bab0514 | 1bab0d14 |
| Base 15 | 14850115 | 14850915 |
| Base 16 | f1b3116 | f1b3916 |