Compare 28181 vs 28188
| Property | 28181 | 28188 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 8 |
| Prime factorization | 281811 | 22 × 35 × 291 |
| Prime factorization | 28181 | 2 × 2 × 3 × 3 × 3 × 3 × 3 × 29 |
| Divisors count | 2 | 36 |
| Divisors | 1, 28181 | 1, 2, 3, 4, 6, 9, 12, 18, 27, 29, 36, 54, 58, 81, 87, 108, 116, 162, 174, 243, 261, 324, 348, 486, 522, 783, 972, 1044, 1566, 2349, 3132, 4698, 7047, 9396, 14094, 28188 |
| Number of properties | 5 | 0 |
| Chen primes | 1493rd | |
| Harmonic primes | 1147th | |
| Primes | 3072nd | |
| Pythagorean primes | 1529th | |
| Twin primes (1st member) | 449th | |
| Roman numberals | ||
| Base 2 | 1101110000101012 | 1101110000111002 |
| Base 3 | 11021222023 | 11022000003 |
| Base 4 | 123201114 | 123201304 |
| Base 5 | 14002115 | 14002235 |
| Base 6 | 3342456 | 3343006 |
| Base 7 | 1451067 | 1451167 |
| Base 8 | 670258 | 670348 |
| Base 9 | 425829 | 426009 |
| Base 10 | 2818110 | 2818810 |
| Base 11 | 1a19a11 | 1a1a611 |
| Base 12 | 1438512 | 1439012 |
| Base 13 | ca9a13 | caa413 |
| Base 14 | a3ad14 | a3b614 |
| Base 15 | 853b15 | 854315 |
| Base 16 | 6e1516 | 6e1c16 |