Compare 81020 vs 81021
| Property | 81020 | 81021 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 3 |
| Total factors | 4 | 3 |
| Prime factorization | 22 × 51 × 40511 | 31 × 1131 × 2391 |
| Prime factorization | 2 × 2 × 5 × 4051 | 3 × 113 × 239 |
| Divisors count | 12 | 8 |
| Divisors | 1, 2, 4, 5, 10, 20, 4051, 8102, 16204, 20255, 40510, 81020 | 1, 3, 113, 239, 339, 717, 27007, 81021 |
| Number of properties | 0 | 0 |
| Roman numberals | ||
| Base 2 | 100111100011111002 | 100111100011111012 |
| Base 3 | 110100102023 | 110100102103 |
| Base 4 | 1033013304 | 1033013314 |
| Base 5 | 100430405 | 100430415 |
| Base 6 | 14230326 | 14230336 |
| Base 7 | 4551327 | 4551337 |
| Base 8 | 2361748 | 2361758 |
| Base 9 | 1331229 | 1331239 |
| Base 10 | 8102010 | 8102110 |
| Base 11 | 5596511 | 5596611 |
| Base 12 | 3aa7812 | 3aa7912 |
| Base 13 | 2ab5413 | 2ab5513 |
| Base 14 | 2175214 | 2175314 |
| Base 15 | 1901515 | 1901615 |
| Base 16 | 13c7c16 | 13c7d16 |