Compare 21983 vs 21989
| Property | 21983 | 21989 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 131 × 191 × 891 | 111 × 19991 |
| Prime factorization | 13 × 19 × 89 | 11 × 1999 |
| Divisors count | 8 | 4 |
| Divisors | 1, 13, 19, 89, 247, 1157, 1691, 21983 | 1, 11, 1999, 21989 |
| Number of properties | 0 | 1 |
| Semiprimes | 5552nd | |
| Roman numberals | ||
| Base 2 | 1010101110111112 | 1010101111001012 |
| Base 3 | 10100110123 | 10100111023 |
| Base 4 | 111131334 | 111132114 |
| Base 5 | 12004135 | 12004245 |
| Base 6 | 2454356 | 2454456 |
| Base 7 | 1210437 | 1210527 |
| Base 8 | 527378 | 527458 |
| Base 9 | 331359 | 331429 |
| Base 10 | 2198310 | 2198910 |
| Base 11 | 1557511 | 1558011 |
| Base 12 | 1087b12 | 1088512 |
| Base 13 | a01013 | a01613 |
| Base 14 | 802314 | 802914 |
| Base 15 | 67a815 | 67ae15 |
| Base 16 | 55df16 | 55e516 |