Compare 7990 vs 7991
| Property | 7990 | 7991 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 21 × 51 × 171 × 471 | 611 × 1311 |
| Prime factorization | 2 × 5 × 17 × 47 | 61 × 131 |
| Divisors count | 16 | 4 |
| Divisors | 1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 3995, 7990 | 1, 61, 131, 7991 |
| Number of properties | 0 | 1 |
| Semiprimes | 2127th | |
| Roman numberals | ||
| Base 2 | 11111001101102 | 11111001101112 |
| Base 3 | 1012212213 | 1012212223 |
| Base 4 | 13303124 | 13303134 |
| Base 5 | 2234305 | 2234315 |
| Base 6 | 1005546 | 1005556 |
| Base 7 | 322037 | 322047 |
| Base 8 | 174668 | 174678 |
| Base 9 | 118579 | 118589 |
| Base 10 | 799010 | 799110 |
| Base 11 | 600411 | 600511 |
| Base 12 | 475a12 | 475b12 |
| Base 13 | 383813 | 383913 |
| Base 14 | 2caa14 | 2cab14 |
| Base 15 | 257a15 | 257b15 |
| Base 16 | 1f3616 | 1f3716 |