Compare 21284 vs 21287
| Property | 21284 | 21287 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 22 × 171 × 3131 | 71 × 30411 |
| Prime factorization | 2 × 2 × 17 × 313 | 7 × 3041 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 4, 17, 34, 68, 313, 626, 1252, 5321, 10642, 21284 | 1, 7, 3041, 21287 |
| Number of properties | 0 | 1 |
| Semiprimes | 5394th | |
| Roman numberals | ||
| Base 2 | 1010011001001002 | 1010011001001112 |
| Base 3 | 10020120223 | 10020121023 |
| Base 4 | 110302104 | 110302134 |
| Base 5 | 11401145 | 11401225 |
| Base 6 | 2423126 | 2423156 |
| Base 7 | 1160247 | 1160307 |
| Base 8 | 514448 | 514478 |
| Base 9 | 321689 | 321729 |
| Base 10 | 2128410 | 2128710 |
| Base 11 | 14a9a11 | 14aa211 |
| Base 12 | 1039812 | 1039b12 |
| Base 13 | 98c313 | 98c613 |
| Base 14 | 7a8414 | 7a8714 |
| Base 15 | 648e15 | 649215 |
| Base 16 | 532416 | 532716 |