Compare 28001 vs 28181
| Property | 28001 | 28181 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 280011 | 281811 |
| Prime factorization | 28001 | 28181 |
| Divisors count | 2 | 2 |
| Divisors | 1, 28001 | 1, 28181 |
| Number of properties | 7 | 5 |
| Additive primes | 1401st | |
| Chen primes | 1486th | 1493rd |
| Cousin primes (2nd member) | 447th | |
| Harmonic primes | 1147th | |
| Isolated primes | 2165th | |
| Primes | 3056th | 3072nd |
| Pythagorean primes | 1523rd | 1529th |
| Sophie germain primes | 424th | |
| Twin primes (1st member) | 449th | |
| Roman numberals | ||
| Base 2 | 1101101011000012 | 1101110000101012 |
| Base 3 | 11021020023 | 11021222023 |
| Base 4 | 123112014 | 123201114 |
| Base 5 | 13440015 | 14002115 |
| Base 6 | 3333456 | 3342456 |
| Base 7 | 1444317 | 1451067 |
| Base 8 | 665418 | 670258 |
| Base 9 | 423629 | 425829 |
| Base 10 | 2800110 | 2818110 |
| Base 11 | 1a04611 | 1a19a11 |
| Base 12 | 1425512 | 1438512 |
| Base 13 | c98c13 | ca9a13 |
| Base 14 | a2c114 | a3ad14 |
| Base 15 | 846b15 | 853b15 |
| Base 16 | 6d6116 | 6e1516 |