Compare 989991 vs 990001
| Property | 989991 | 990001 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 32 × 3171 × 3471 | 9900011 |
| Prime factorization | 3 × 3 × 317 × 347 | 990001 |
| Divisors count | 12 | 2 |
| Divisors | 1, 3, 9, 317, 347, 951, 1041, 2853, 3123, 109999, 329997, 989991 | 1, 990001 |
| Number of properties | 0 | 3 |
| Additive primes | 29855th | |
| Primes | 77778th | |
| Twin primes (2nd member) | 8102nd | |
| Roman numberals | ||
| Base 2 | 111100011011001001112 | 111100011011001100012 |
| Base 3 | 12120220001003 | 12120220002013 |
| Base 4 | 33012302134 | 33012303014 |
| Base 5 | 2231344315 | 2231400015 |
| Base 6 | 331151436 | 331152016 |
| Base 7 | 112621627 | 112622057 |
| Base 8 | 36154478 | 36154618 |
| Base 9 | 17680109 | 17680219 |
| Base 10 | 98999110 | 99000110 |
| Base 11 | 61688211 | 61689111 |
| Base 12 | 3b8ab312 | 3b8b0112 |
| Base 13 | 2887c213 | 2887cc13 |
| Base 14 | 1baad914 | 1bab0514 |
| Base 15 | 1484e615 | 14850115 |
| Base 16 | f1b2716 | f1b3116 |