Compare 21890 vs 21899
| Property | 21890 | 21899 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 21 × 51 × 111 × 1991 | 611 × 3591 |
| Prime factorization | 2 × 5 × 11 × 199 | 61 × 359 |
| Divisors count | 16 | 4 |
| Divisors | 1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 995, 1990, 2189, 4378, 10945, 21890 | 1, 61, 359, 21899 |
| Number of properties | 0 | 1 |
| Semiprimes | 5529th | |
| Roman numberals | ||
| Base 2 | 1010101100000102 | 1010101100010112 |
| Base 3 | 10100002023 | 10100010023 |
| Base 4 | 111120024 | 111120234 |
| Base 5 | 12000305 | 12000445 |
| Base 6 | 2452026 | 2452156 |
| Base 7 | 1205517 | 1205637 |
| Base 8 | 526028 | 526138 |
| Base 9 | 330229 | 330329 |
| Base 10 | 2189010 | 2189910 |
| Base 11 | 154a011 | 154a911 |
| Base 12 | 1080212 | 1080b12 |
| Base 13 | 9c6b13 | 9c7713 |
| Base 14 | 7d9814 | 7da314 |
| Base 15 | 674515 | 674e15 |
| Base 16 | 558216 | 558b16 |