Compare 280406 vs 280409
| Property | 280406 | 280409 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 71 × 200291 | 2804091 |
| Prime factorization | 2 × 7 × 20029 | 280409 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 7, 14, 20029, 40058, 140203, 280406 | 1, 280409 |
| Number of properties | 0 | 5 |
| Additive primes | 9817th | |
| Chen primes | 10067th | |
| Harmonic primes | 9132nd | |
| Primes | 24465th | |
| Twin primes (1st member) | 2838th | |
| Roman numberals | ||
| Base 2 | 10001000111010101102 | 10001000111010110012 |
| Base 3 | 1120201221023 | 1120201221123 |
| Base 4 | 10101311124 | 10101311214 |
| Base 5 | 324331115 | 324331145 |
| Base 6 | 100021026 | 100021056 |
| Base 7 | 22453407 | 22453437 |
| Base 8 | 10435268 | 10435318 |
| Base 9 | 4665729 | 4665759 |
| Base 10 | 28040610 | 28040910 |
| Base 11 | 18174511 | 18174811 |
| Base 12 | 11633212 | 11633512 |
| Base 13 | 9a82913 | 9a82c13 |
| Base 14 | 7429014 | 7429314 |
| Base 15 | 5813b15 | 5813e15 |
| Base 16 | 4475616 | 4475916 |