Compare 221561 vs 221572
| Property | 221561 | 221572 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 171 × 130331 | 22 × 131 × 42611 |
| Prime factorization | 17 × 13033 | 2 × 2 × 13 × 4261 |
| Divisors count | 4 | 12 |
| Divisors | 1, 17, 13033, 221561 | 1, 2, 4, 13, 26, 52, 4261, 8522, 17044, 55393, 110786, 221572 |
| Number of properties | 1 | 0 |
| Semiprimes | 49856th | |
| Roman numberals | ||
| Base 2 | 1101100001011110012 | 1101100001100001002 |
| Base 3 | 1020202202223 | 1020202211013 |
| Base 4 | 3120113214 | 3120120104 |
| Base 5 | 240422215 | 240422425 |
| Base 6 | 44254256 | 44254446 |
| Base 7 | 16116447 | 16116617 |
| Base 8 | 6605718 | 6606048 |
| Base 9 | 3668289 | 3668419 |
| Base 10 | 22156110 | 22157210 |
| Base 11 | 14150a11 | 14151a11 |
| Base 12 | a827512 | a828412 |
| Base 13 | 79b0213 | 79b1013 |
| Base 14 | 5aa5b14 | 5aa6814 |
| Base 15 | 459ab15 | 459b715 |
| Base 16 | 3617916 | 3618416 |