Compare 21871 vs 21875
| Property | 21871 | 21875 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 6 |
| Prime factorization | 218711 | 55 × 71 |
| Prime factorization | 21871 | 5 × 5 × 5 × 5 × 5 × 7 |
| Divisors count | 2 | 12 |
| Divisors | 1, 21871 | 1, 5, 7, 25, 35, 125, 175, 625, 875, 3125, 4375, 21875 |
| Number of properties | 3 | 0 |
| Additive primes | 1135th | |
| Isolated primes | 1711th | |
| Primes | 2454th | |
| Roman numberals | ||
| Base 2 | 1010101011011112 | 1010101011100112 |
| Base 3 | 10100000013 | 10100000123 |
| Base 4 | 111112334 | 111113034 |
| Base 5 | 11444415 | 12000005 |
| Base 6 | 2451316 | 2451356 |
| Base 7 | 1205237 | 1205307 |
| Base 8 | 525578 | 525638 |
| Base 9 | 330019 | 330059 |
| Base 10 | 2187110 | 2187510 |
| Base 11 | 1548311 | 1548711 |
| Base 12 | 107a712 | 107ab12 |
| Base 13 | 9c5513 | 9c5913 |
| Base 14 | 7d8314 | 7d8714 |
| Base 15 | 673115 | 673515 |
| Base 16 | 556f16 | 557316 |