Compare 28171 vs 28181
| Property | 28171 | 28181 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 111 × 131 × 1971 | 281811 |
| Prime factorization | 11 × 13 × 197 | 28181 |
| Divisors count | 8 | 2 |
| Divisors | 1, 11, 13, 143, 197, 2167, 2561, 28171 | 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 | 1101110000010112 | 1101110000101012 |
| Base 3 | 11021221013 | 11021222023 |
| Base 4 | 123200234 | 123201114 |
| Base 5 | 14001415 | 14002115 |
| Base 6 | 3342316 | 3342456 |
| Base 7 | 1450637 | 1451067 |
| Base 8 | 670138 | 670258 |
| Base 9 | 425719 | 425829 |
| Base 10 | 2817110 | 2818110 |
| Base 11 | 1a19011 | 1a19a11 |
| Base 12 | 1437712 | 1438512 |
| Base 13 | ca9013 | ca9a13 |
| Base 14 | a3a314 | a3ad14 |
| Base 15 | 853115 | 853b15 |
| Base 16 | 6e0b16 | 6e1516 |