Compare 21384 vs 21391
| Property | 21384 | 21391 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 9 | 1 |
| Prime factorization | 23 × 35 × 111 | 213911 |
| Prime factorization | 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 11 | 21391 |
| Divisors count | 48 | 2 |
| Divisors | 1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 81, 88, 99, 108, 132, 162, 198, 216, 243, 264, 297, 324, 396, 486, 594, 648, 792, 891, 972, 1188, 1782, 1944, 2376, 2673, 3564, 5346, 7128, 10692, 21384 | 1, 21391 |
| Number of properties | 0 | 3 |
| Isolated primes | 1676th | |
| Primes | 2401st | |
| Sexy primes (1st member) | 729th | |
| Roman numberals | ||
| Base 2 | 1010011100010002 | 1010011100011112 |
| Base 3 | 10021000003 | 10021000213 |
| Base 4 | 110320204 | 110320334 |
| Base 5 | 11410145 | 11410315 |
| Base 6 | 2430006 | 2430116 |
| Base 7 | 1162267 | 1162367 |
| Base 8 | 516108 | 516178 |
| Base 9 | 323009 | 323079 |
| Base 10 | 2138410 | 2139110 |
| Base 11 | 1508011 | 1508711 |
| Base 12 | 1046012 | 1046712 |
| Base 13 | 996c13 | 997613 |
| Base 14 | 7b1614 | 7b1d14 |
| Base 15 | 650915 | 651115 |
| Base 16 | 538816 | 538f16 |