Compare 21988 vs 21993
| Property | 21988 | 21993 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 22 × 231 × 2391 | 31 × 73311 |
| Prime factorization | 2 × 2 × 23 × 239 | 3 × 7331 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 4, 23, 46, 92, 239, 478, 956, 5497, 10994, 21988 | 1, 3, 7331, 21993 |
| Number of properties | 0 | 1 |
| Semiprimes | 5553rd | |
| Roman numberals | ||
| Base 2 | 1010101111001002 | 1010101111010012 |
| Base 3 | 10100111013 | 10100111203 |
| Base 4 | 111132104 | 111132214 |
| Base 5 | 12004235 | 12004335 |
| Base 6 | 2454446 | 2454536 |
| Base 7 | 1210517 | 1210567 |
| Base 8 | 527448 | 527518 |
| Base 9 | 331419 | 331469 |
| Base 10 | 2198810 | 2199310 |
| Base 11 | 1557a11 | 1558411 |
| Base 12 | 1088412 | 1088912 |
| Base 13 | a01513 | a01a13 |
| Base 14 | 802814 | 802d14 |
| Base 15 | 67ad15 | 67b315 |
| Base 16 | 55e416 | 55e916 |