Compare 278555 vs 278561
| Property | 278555 | 278561 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 557111 | 2785611 |
| Prime factorization | 5 × 55711 | 278561 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 55711, 278555 | 1, 278561 |
| Number of properties | 1 | 7 |
| Additive primes | 9756th | |
| Chen primes | 10008th | |
| Cousin primes (2nd member) | 2806th | |
| Harmonic primes | 9077th | |
| Primes | 24322nd | |
| Prime triplets (2nd member) | 1091st | |
| Semiprimes | 62016th | |
| Twin primes (1st member) | 2825th | |
| Roman numberals | ||
| Base 2 | 10001000000000110112 | 10001000000001000012 |
| Base 3 | 1120110022123 | 1120110100023 |
| Base 4 | 10100001234 | 10100002014 |
| Base 5 | 324032105 | 324032215 |
| Base 6 | 55453356 | 55453456 |
| Base 7 | 22400547 | 22400637 |
| Base 8 | 10400338 | 10400418 |
| Base 9 | 4640859 | 4641029 |
| Base 10 | 27855510 | 27856110 |
| Base 11 | 18031211 | 18031811 |
| Base 12 | 11524b12 | 11525512 |
| Base 13 | 99a3413 | 99a3a13 |
| Base 14 | 7372b14 | 7373314 |
| Base 15 | 5780515 | 5780b15 |
| Base 16 | 4401b16 | 4402116 |