Compare 121215 vs 121219
| Property | 121215 | 121219 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 51 × 80811 | 71 × 173171 |
| Prime factorization | 3 × 5 × 8081 | 7 × 17317 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 5, 15, 8081, 24243, 40405, 121215 | 1, 7, 17317, 121219 |
| Number of properties | 0 | 1 |
| Semiprimes | 28102nd | |
| Roman numberals | ||
| Base 2 | 111011001011111112 | 111011001100000112 |
| Base 3 | 200110211103 | 200110211213 |
| Base 4 | 1312113334 | 1312120034 |
| Base 5 | 123343305 | 123343345 |
| Base 6 | 23331036 | 23331116 |
| Base 7 | 10132537 | 10132607 |
| Base 8 | 3545778 | 3546038 |
| Base 9 | 2042439 | 2042479 |
| Base 10 | 12121510 | 12121910 |
| Base 11 | 8308611 | 8308a11 |
| Base 12 | 5a19312 | 5a19712 |
| Base 13 | 4323313 | 4323713 |
| Base 14 | 3226314 | 3226714 |
| Base 15 | 25db015 | 25db415 |
| Base 16 | 1d97f16 | 1d98316 |