Compare 28001 vs 28005
| Property | 28001 | 28005 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 280011 | 31 × 51 × 18671 |
| Prime factorization | 28001 | 3 × 5 × 1867 |
| Divisors count | 2 | 8 |
| Divisors | 1, 28001 | 1, 3, 5, 15, 1867, 5601, 9335, 28005 |
| Number of properties | 7 | 0 |
| Additive primes | 1401st | |
| Chen primes | 1486th | |
| Cousin primes (2nd member) | 447th | |
| Isolated primes | 2165th | |
| Primes | 3056th | |
| Pythagorean primes | 1523rd | |
| Sophie germain primes | 424th | |
| Roman numberals | ||
| Base 2 | 1101101011000012 | 1101101011001012 |
| Base 3 | 11021020023 | 11021020203 |
| Base 4 | 123112014 | 123112114 |
| Base 5 | 13440015 | 13440105 |
| Base 6 | 3333456 | 3333536 |
| Base 7 | 1444317 | 1444357 |
| Base 8 | 665418 | 665458 |
| Base 9 | 423629 | 423669 |
| Base 10 | 2800110 | 2800510 |
| Base 11 | 1a04611 | 1a04a11 |
| Base 12 | 1425512 | 1425912 |
| Base 13 | c98c13 | c99313 |
| Base 14 | a2c114 | a2c514 |
| Base 15 | 846b15 | 847015 |
| Base 16 | 6d6116 | 6d6516 |