Compare 11989 vs 11991
| Property | 11989 | 11991 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 191 × 6311 | 31 × 71 × 5711 |
| Prime factorization | 19 × 631 | 3 × 7 × 571 |
| Divisors count | 4 | 8 |
| Divisors | 1, 19, 631, 11989 | 1, 3, 7, 21, 571, 1713, 3997, 11991 |
| Number of properties | 1 | 0 |
| Semiprimes | 3128th | |
| Roman numberals | ||
| Base 2 | 101110110101012 | 101110110101112 |
| Base 3 | 1211100013 | 1211100103 |
| Base 4 | 23231114 | 23231134 |
| Base 5 | 3404245 | 3404315 |
| Base 6 | 1313016 | 1313036 |
| Base 7 | 466457 | 466507 |
| Base 8 | 273258 | 273278 |
| Base 9 | 174019 | 174039 |
| Base 10 | 1198910 | 1199110 |
| Base 11 | 900a11 | 901111 |
| Base 12 | 6b3112 | 6b3312 |
| Base 13 | 55c313 | 55c513 |
| Base 14 | 452514 | 452714 |
| Base 15 | 384415 | 384615 |
| Base 16 | 2ed516 | 2ed716 |