Compare 280400 vs 280409
| Property | 280400 | 280409 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 7 | 1 |
| Prime factorization | 24 × 52 × 7011 | 2804091 |
| Prime factorization | 2 × 2 × 2 × 2 × 5 × 5 × 701 | 280409 |
| Divisors count | 30 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 701, 1402, 2804, 3505, 5608, 7010, 11216, 14020, 17525, 28040, 35050, 56080, 70100, 140200, 280400 | 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 | 10001000111010100002 | 10001000111010110012 |
| Base 3 | 1120201220123 | 1120201221123 |
| Base 4 | 10101311004 | 10101311214 |
| Base 5 | 324331005 | 324331145 |
| Base 6 | 100020526 | 100021056 |
| Base 7 | 22453317 | 22453437 |
| Base 8 | 10435208 | 10435318 |
| Base 9 | 4665659 | 4665759 |
| Base 10 | 28040010 | 28040910 |
| Base 11 | 18173a11 | 18174811 |
| Base 12 | 11632812 | 11633512 |
| Base 13 | 9a82313 | 9a82c13 |
| Base 14 | 7428814 | 7429314 |
| Base 15 | 5813515 | 5813e15 |
| Base 16 | 4475016 | 4475916 |