Compare 21873 vs 21881
| Property | 21873 | 21881 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 231 × 3171 | 218811 |
| Prime factorization | 3 × 23 × 317 | 21881 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 23, 69, 317, 951, 7291, 21873 | 1, 21881 |
| Number of properties | 0 | 4 |
| Chen primes | 1204th | |
| Isolated primes | 1712th | |
| Primes | 2455th | |
| Pythagorean primes | 1217th | |
| Roman numberals | ||
| Base 2 | 1010101011100012 | 1010101011110012 |
| Base 3 | 10100000103 | 10100001023 |
| Base 4 | 111113014 | 111113214 |
| Base 5 | 11444435 | 12000115 |
| Base 6 | 2451336 | 2451456 |
| Base 7 | 1205257 | 1205367 |
| Base 8 | 525618 | 525718 |
| Base 9 | 330039 | 330129 |
| Base 10 | 2187310 | 2188110 |
| Base 11 | 1548511 | 1549211 |
| Base 12 | 107a912 | 107b512 |
| Base 13 | 9c5713 | 9c6213 |
| Base 14 | 7d8514 | 7d8d14 |
| Base 15 | 673315 | 673b15 |
| Base 16 | 557116 | 557916 |