Compare 989981 vs 989988
| Property | 989981 | 989988 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 4 |
| Prime factorization | 9899811 | 22 × 31 × 824991 |
| Prime factorization | 989981 | 2 × 2 × 3 × 82499 |
| Divisors count | 2 | 12 |
| Divisors | 1, 989981 | 1, 2, 3, 4, 6, 12, 82499, 164998, 247497, 329996, 494994, 989988 |
| Number of properties | 5 | 0 |
| Chen primes | 29703rd | |
| Cousin primes (2nd member) | 8088th | |
| Emirps | 10953rd | |
| Isolated primes | 61575th | |
| Primes | 77776th | |
| Roman numberals | ||
| Base 2 | 111100011011000111012 | 111100011011001001002 |
| Base 3 | 12120212222223 | 12120220000203 |
| Base 4 | 33012301314 | 33012302104 |
| Base 5 | 2231344115 | 2231344235 |
| Base 6 | 331151256 | 331151406 |
| Base 7 | 112621467 | 112621567 |
| Base 8 | 36154358 | 36154448 |
| Base 9 | 17678889 | 17680069 |
| Base 10 | 98998110 | 98998810 |
| Base 11 | 61687311 | 61687a11 |
| Base 12 | 3b8aa512 | 3b8ab012 |
| Base 13 | 2887b513 | 2887bc13 |
| Base 14 | 1baacd14 | 1baad614 |
| Base 15 | 1484db15 | 1484e315 |
| Base 16 | f1b1d16 | f1b2416 |