Compare 128405 vs 128407
| Property | 128405 | 128407 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 51 × 611 × 4211 | 731 × 17591 |
| Prime factorization | 5 × 61 × 421 | 73 × 1759 |
| Divisors count | 8 | 4 |
| Divisors | 1, 5, 61, 305, 421, 2105, 25681, 128405 | 1, 73, 1759, 128407 |
| Number of properties | 0 | 1 |
| Semiprimes | 29688th | |
| Roman numberals | ||
| Base 2 | 111110101100101012 | 111110101100101112 |
| Base 3 | 201120102023 | 201120102113 |
| Base 4 | 1331121114 | 1331121134 |
| Base 5 | 131021105 | 131021125 |
| Base 6 | 24302456 | 24302516 |
| Base 7 | 10432347 | 10432367 |
| Base 8 | 3726258 | 3726278 |
| Base 9 | 2151229 | 2151249 |
| Base 10 | 12840510 | 12840710 |
| Base 11 | 8852211 | 8852411 |
| Base 12 | 6238512 | 6238712 |
| Base 13 | 465a413 | 465a613 |
| Base 14 | 34b1b14 | 34b1d14 |
| Base 15 | 280a515 | 280a715 |
| Base 16 | 1f59516 | 1f59716 |