Compare 399981 vs 399987
| Property | 399981 | 399987 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 5 |
| Prime factorization | 31 × 1333271 | 32 × 72 × 9071 |
| Prime factorization | 3 × 133327 | 3 × 3 × 7 × 7 × 907 |
| Divisors count | 4 | 18 |
| Divisors | 1, 3, 133327, 399981 | 1, 3, 7, 9, 21, 49, 63, 147, 441, 907, 2721, 6349, 8163, 19047, 44443, 57141, 133329, 399987 |
| Number of properties | 1 | 0 |
| Semiprimes | 87549th | |
| Roman numberals | ||
| Base 2 | 11000011010011011012 | 11000011010011100112 |
| Base 3 | 2020222000103 | 2020222001003 |
| Base 4 | 12012212314 | 12012213034 |
| Base 5 | 1002444115 | 1002444225 |
| Base 6 | 123234336 | 123234436 |
| Base 7 | 32540617 | 32541007 |
| Base 8 | 14151558 | 14151638 |
| Base 9 | 6686039 | 6686109 |
| Base 10 | 39998110 | 39998710 |
| Base 11 | 25356a11 | 25357511 |
| Base 12 | 17357912 | 17358312 |
| Base 13 | 11009a13 | 1100a313 |
| Base 14 | a5aa114 | a5aa714 |
| Base 15 | 7d7a615 | 7d7ac15 |
| Base 16 | 61a6d16 | 61a7316 |