Compare 280397 vs 280409
| Property | 280397 | 280409 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 131 × 215691 | 2804091 |
| Prime factorization | 13 × 21569 | 280409 |
| Divisors count | 4 | 2 |
| Divisors | 1, 13, 21569, 280397 | 1, 280409 |
| Number of properties | 1 | 5 |
| Additive primes | 9817th | |
| Chen primes | 10067th | |
| Harmonic primes | 9132nd | |
| Primes | 24465th | |
| Semiprimes | 62419th | |
| Twin primes (1st member) | 2838th | |
| Roman numberals | ||
| Base 2 | 10001000111010011012 | 10001000111010110012 |
| Base 3 | 1120201220023 | 1120201221123 |
| Base 4 | 10101310314 | 10101311214 |
| Base 5 | 324330425 | 324331145 |
| Base 6 | 100020456 | 100021056 |
| Base 7 | 22453257 | 22453437 |
| Base 8 | 10435158 | 10435318 |
| Base 9 | 4665629 | 4665759 |
| Base 10 | 28039710 | 28040910 |
| Base 11 | 18173711 | 18174811 |
| Base 12 | 11632512 | 11633512 |
| Base 13 | 9a82013 | 9a82c13 |
| Base 14 | 7428514 | 7429314 |
| Base 15 | 5813215 | 5813e15 |
| Base 16 | 4474d16 | 4475916 |