Compare 21979 vs 21999
| Property | 21979 | 21999 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 311 × 7091 | 31 × 73331 |
| Prime factorization | 31 × 709 | 3 × 7333 |
| Divisors count | 4 | 4 |
| Divisors | 1, 31, 709, 21979 | 1, 3, 7333, 21999 |
| Number of properties | 1 | 1 |
| Semiprimes | 5549th | 5554th |
| Roman numberals | ||
| Base 2 | 1010101110110112 | 1010101111011112 |
| Base 3 | 10100110013 | 10100112103 |
| Base 4 | 111131234 | 111132334 |
| Base 5 | 12004045 | 12004445 |
| Base 6 | 2454316 | 2455036 |
| Base 7 | 1210367 | 1210657 |
| Base 8 | 527338 | 527578 |
| Base 9 | 331319 | 331539 |
| Base 10 | 2197910 | 2199910 |
| Base 11 | 1557111 | 1558a11 |
| Base 12 | 1087712 | 1089312 |
| Base 13 | a00913 | a02313 |
| Base 14 | 801d14 | 803514 |
| Base 15 | 67a415 | 67b915 |
| Base 16 | 55db16 | 55ef16 |