Compare 21971 vs 21989
| Property | 21971 | 21989 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 1271 × 1731 | 111 × 19991 |
| Prime factorization | 127 × 173 | 11 × 1999 |
| Divisors count | 4 | 4 |
| Divisors | 1, 127, 173, 21971 | 1, 11, 1999, 21989 |
| Number of properties | 1 | 1 |
| Semiprimes | 5547th | 5552nd |
| Roman numberals | ||
| Base 2 | 1010101110100112 | 1010101111001012 |
| Base 3 | 10100102023 | 10100111023 |
| Base 4 | 111131034 | 111132114 |
| Base 5 | 12003415 | 12004245 |
| Base 6 | 2454156 | 2454456 |
| Base 7 | 1210257 | 1210527 |
| Base 8 | 527238 | 527458 |
| Base 9 | 331229 | 331429 |
| Base 10 | 2197110 | 2198910 |
| Base 11 | 1556411 | 1558011 |
| Base 12 | 1086b12 | 1088512 |
| Base 13 | a00113 | a01613 |
| Base 14 | 801514 | 802914 |
| Base 15 | 679b15 | 67ae15 |
| Base 16 | 55d316 | 55e516 |