Compare 28001 vs 28019
| Property | 28001 | 28019 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 280011 | 280191 |
| Prime factorization | 28001 | 28019 |
| Divisors count | 2 | 2 |
| Divisors | 1, 28001 | 1, 28019 |
| Number of properties | 7 | 6 |
| Additive primes | 1401st | |
| Chen primes | 1486th | 1487th |
| Cousin primes (2nd member) | 447th | |
| Isolated primes | 2165th | 2166th |
| Long primes | 1164th | |
| Primes | 3056th | 3057th |
| Pythagorean primes | 1523rd | |
| Safe primes | 249th | |
| Sophie germain primes | 424th | 425th |
| Roman numberals | ||
| Base 2 | 1101101011000012 | 1101101011100112 |
| Base 3 | 11021020023 | 11021022023 |
| Base 4 | 123112014 | 123113034 |
| Base 5 | 13440015 | 13440345 |
| Base 6 | 3333456 | 3334156 |
| Base 7 | 1444317 | 1444557 |
| Base 8 | 665418 | 665638 |
| Base 9 | 423629 | 423829 |
| Base 10 | 2800110 | 2801910 |
| Base 11 | 1a04611 | 1a06211 |
| Base 12 | 1425512 | 1426b12 |
| Base 13 | c98c13 | c9a413 |
| Base 14 | a2c114 | a2d514 |
| Base 15 | 846b15 | 847e15 |
| Base 16 | 6d6116 | 6d7316 |