Compare 989989 vs 989999
| Property | 989989 | 989999 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 5 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 71 × 111 × 131 × 231 × 431 | 9899991 |
| Prime factorization | 7 × 11 × 13 × 23 × 43 | 989999 |
| Divisors count | 32 | 2 |
| Divisors | 1, 7, 11, 13, 23, 43, 77, 91, 143, 161, 253, 299, 301, 473, 559, 989, 1001, 1771, 2093, 3289, 3311, 3913, 6149, 6923, 10879, 12857, 23023, 43043, 76153, 89999, 141427, 989989 | 1, 989999 |
| Number of properties | 0 | 4 |
| Additive primes | 29854th | |
| Chen primes | 29704th | |
| Primes | 77777th | |
| Twin primes (1st member) | 8102nd | |
| Roman numberals | ||
| Base 2 | 111100011011001001012 | 111100011011001011112 |
| Base 3 | 12120220000213 | 12120220001223 |
| Base 4 | 33012302114 | 33012302334 |
| Base 5 | 2231344245 | 2231344445 |
| Base 6 | 331151416 | 331151556 |
| Base 7 | 112621607 | 112622037 |
| Base 8 | 36154458 | 36154578 |
| Base 9 | 17680079 | 17680189 |
| Base 10 | 98998910 | 98999910 |
| Base 11 | 61688011 | 61688a11 |
| Base 12 | 3b8ab112 | 3b8abb12 |
| Base 13 | 2887c013 | 2887ca13 |
| Base 14 | 1baad714 | 1bab0314 |
| Base 15 | 1484e415 | 1484ee15 |
| Base 16 | f1b2516 | f1b2f16 |