Compare 21985 vs 21999
| Property | 21985 | 21999 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 43971 | 31 × 73331 |
| Prime factorization | 5 × 4397 | 3 × 7333 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 4397, 21985 | 1, 3, 7333, 21999 |
| Number of properties | 1 | 1 |
| Semiprimes | 5550th | 5554th |
| Roman numberals | ||
| Base 2 | 1010101111000012 | 1010101111011112 |
| Base 3 | 10100110213 | 10100112103 |
| Base 4 | 111132014 | 111132334 |
| Base 5 | 12004205 | 12004445 |
| Base 6 | 2454416 | 2455036 |
| Base 7 | 1210457 | 1210657 |
| Base 8 | 527418 | 527578 |
| Base 9 | 331379 | 331539 |
| Base 10 | 2198510 | 2199910 |
| Base 11 | 1557711 | 1558a11 |
| Base 12 | 1088112 | 1089312 |
| Base 13 | a01213 | a02313 |
| Base 14 | 802514 | 803514 |
| Base 15 | 67aa15 | 67b915 |
| Base 16 | 55e116 | 55ef16 |