Compare 21428 vs 21438
| Property | 21428 | 21438 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 3 |
| Total factors | 4 | 5 |
| Prime factorization | 22 × 111 × 4871 | 21 × 33 × 3971 |
| Prime factorization | 2 × 2 × 11 × 487 | 2 × 3 × 3 × 3 × 397 |
| Divisors count | 12 | 16 |
| Divisors | 1, 2, 4, 11, 22, 44, 487, 974, 1948, 5357, 10714, 21428 | 1, 2, 3, 6, 9, 18, 27, 54, 397, 794, 1191, 2382, 3573, 7146, 10719, 21438 |
| Number of properties | 0 | 0 |
| Roman numberals | ||
| Base 2 | 1010011101101002 | 1010011101111102 |
| Base 3 | 10021011223 | 10021020003 |
| Base 4 | 110323104 | 110323324 |
| Base 5 | 11412035 | 11412235 |
| Base 6 | 2431126 | 2431306 |
| Base 7 | 1163217 | 1163347 |
| Base 8 | 516648 | 516768 |
| Base 9 | 323489 | 323609 |
| Base 10 | 2142810 | 2143810 |
| Base 11 | 1511011 | 1511a11 |
| Base 12 | 1049812 | 104a612 |
| Base 13 | 99a413 | 99b113 |
| Base 14 | 7b4814 | 7b5414 |
| Base 15 | 653815 | 654315 |
| Base 16 | 53b416 | 53be16 |