Compare 21971 vs 21985
| Property | 21971 | 21985 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 1271 × 1731 | 51 × 43971 |
| Prime factorization | 127 × 173 | 5 × 4397 |
| Divisors count | 4 | 4 |
| Divisors | 1, 127, 173, 21971 | 1, 5, 4397, 21985 |
| Number of properties | 1 | 1 |
| Semiprimes | 5547th | 5550th |
| Roman numberals | ||
| Base 2 | 1010101110100112 | 1010101111000012 |
| Base 3 | 10100102023 | 10100110213 |
| Base 4 | 111131034 | 111132014 |
| Base 5 | 12003415 | 12004205 |
| Base 6 | 2454156 | 2454416 |
| Base 7 | 1210257 | 1210457 |
| Base 8 | 527238 | 527418 |
| Base 9 | 331229 | 331379 |
| Base 10 | 2197110 | 2198510 |
| Base 11 | 1556411 | 1557711 |
| Base 12 | 1086b12 | 1088112 |
| Base 13 | a00113 | a01213 |
| Base 14 | 801514 | 802514 |
| Base 15 | 679b15 | 67aa15 |
| Base 16 | 55d316 | 55e116 |