Compare 128019 vs 128021
| Property | 128019 | 128021 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 1391 × 3071 | 1280211 |
| Prime factorization | 3 × 139 × 307 | 128021 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 139, 307, 417, 921, 42673, 128019 | 1, 128021 |
| Number of properties | 0 | 6 |
| Chen primes | 5182nd | |
| Harmonic primes | 4511th | |
| Isolated primes | 9001st | |
| Long primes | 4499th | |
| Primes | 11988th | |
| Pythagorean primes | 5959th | |
| Roman numberals | ||
| Base 2 | 111110100000100112 | 111110100000101012 |
| Base 3 | 201111211103 | 201111211123 |
| Base 4 | 1331001034 | 1331001114 |
| Base 5 | 130440345 | 130440415 |
| Base 6 | 24244036 | 24244056 |
| Base 7 | 10421437 | 10421457 |
| Base 8 | 3720238 | 3720258 |
| Base 9 | 2145439 | 2145459 |
| Base 10 | 12801910 | 12802110 |
| Base 11 | 8820111 | 8820311 |
| Base 12 | 6210312 | 6210512 |
| Base 13 | 4636813 | 4636a13 |
| Base 14 | 3492314 | 3492514 |
| Base 15 | 27de915 | 27deb15 |
| Base 16 | 1f41316 | 1f41516 |