Compare 28021 vs 28027
| Property | 28021 | 28027 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 40031 | 280271 |
| Prime factorization | 7 × 4003 | 28027 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 4003, 28021 | 1, 28027 |
| Number of properties | 1 | 7 |
| Additive primes | 1402nd | |
| Chen primes | 1488th | |
| Cousin primes (1st member) | 448th | |
| Harmonic primes | 1141st | |
| Isolated primes | 2167th | |
| Lucky primes | 476th | |
| Primes | 3058th | |
| Semiprimes | 6989th | |
| Roman numberals | ||
| Base 2 | 1101101011101012 | 1101101011110112 |
| Base 3 | 11021022113 | 11021100013 |
| Base 4 | 123113114 | 123113234 |
| Base 5 | 13440415 | 13441025 |
| Base 6 | 3334216 | 3334316 |
| Base 7 | 1444607 | 1444667 |
| Base 8 | 665658 | 665738 |
| Base 9 | 423849 | 424019 |
| Base 10 | 2802110 | 2802710 |
| Base 11 | 1a06411 | 1a06a11 |
| Base 12 | 1427112 | 1427712 |
| Base 13 | c9a613 | c9ac13 |
| Base 14 | a2d714 | a2dd14 |
| Base 15 | 848115 | 848715 |
| Base 16 | 6d7516 | 6d7b16 |