Compare 121215 vs 121217
| Property | 121215 | 121217 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 51 × 80811 | 431 × 28191 |
| Prime factorization | 3 × 5 × 8081 | 43 × 2819 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 5, 15, 8081, 24243, 40405, 121215 | 1, 43, 2819, 121217 |
| Number of properties | 0 | 1 |
| Semiprimes | 28101st | |
| Roman numberals | ||
| Base 2 | 111011001011111112 | 111011001100000012 |
| Base 3 | 200110211103 | 200110211123 |
| Base 4 | 1312113334 | 1312120014 |
| Base 5 | 123343305 | 123343325 |
| Base 6 | 23331036 | 23331056 |
| Base 7 | 10132537 | 10132557 |
| Base 8 | 3545778 | 3546018 |
| Base 9 | 2042439 | 2042459 |
| Base 10 | 12121510 | 12121710 |
| Base 11 | 8308611 | 8308811 |
| Base 12 | 5a19312 | 5a19512 |
| Base 13 | 4323313 | 4323513 |
| Base 14 | 3226314 | 3226514 |
| Base 15 | 25db015 | 25db215 |
| Base 16 | 1d97f16 | 1d98116 |