Compare 28811 vs 28813
| Property | 28811 | 28813 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 471 × 6131 | 288131 |
| Prime factorization | 47 × 613 | 28813 |
| Divisors count | 4 | 2 |
| Divisors | 1, 47, 613, 28811 | 1, 28813 |
| Number of properties | 1 | 6 |
| Cousin primes (1st member) | 457th | |
| Cuban primes 2 | 19th | |
| Isolated primes | 2223rd | |
| Primes | 3138th | |
| Pythagorean primes | 1560th | |
| Semiprimes | 7165th | |
| Sexy primes (2nd member) | 923rd | |
| Roman numberals | ||
| Base 2 | 1110000100010112 | 1110000100011012 |
| Base 3 | 11101120023 | 11101120113 |
| Base 4 | 130020234 | 130020314 |
| Base 5 | 14102215 | 14102235 |
| Base 6 | 3412156 | 3412216 |
| Base 7 | 1466667 | 1500017 |
| Base 8 | 702138 | 702158 |
| Base 9 | 434629 | 434649 |
| Base 10 | 2881110 | 2881310 |
| Base 11 | 1a71211 | 1a71411 |
| Base 12 | 1480b12 | 1481112 |
| Base 13 | 1016313 | 1016513 |
| Base 14 | a6dd14 | a70114 |
| Base 15 | 880b15 | 880d15 |
| Base 16 | 708b16 | 708d16 |