Compare 28175 vs 28181
| Property | 28175 | 28181 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 52 × 72 × 231 | 281811 |
| Prime factorization | 5 × 5 × 7 × 7 × 23 | 28181 |
| Divisors count | 18 | 2 |
| Divisors | 1, 5, 7, 23, 25, 35, 49, 115, 161, 175, 245, 575, 805, 1127, 1225, 4025, 5635, 28175 | 1, 28181 |
| Number of properties | 0 | 5 |
| Chen primes | 1493rd | |
| Harmonic primes | 1147th | |
| Primes | 3072nd | |
| Pythagorean primes | 1529th | |
| Twin primes (1st member) | 449th | |
| Roman numberals | ||
| Base 2 | 1101110000011112 | 1101110000101012 |
| Base 3 | 11021221123 | 11021222023 |
| Base 4 | 123200334 | 123201114 |
| Base 5 | 14002005 | 14002115 |
| Base 6 | 3342356 | 3342456 |
| Base 7 | 1451007 | 1451067 |
| Base 8 | 670178 | 670258 |
| Base 9 | 425759 | 425829 |
| Base 10 | 2817510 | 2818110 |
| Base 11 | 1a19411 | 1a19a11 |
| Base 12 | 1437b12 | 1438512 |
| Base 13 | ca9413 | ca9a13 |
| Base 14 | a3a714 | a3ad14 |
| Base 15 | 853515 | 853b15 |
| Base 16 | 6e0f16 | 6e1516 |