Compare 27997 vs 27998
| Property | 27997 | 27998 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 279971 | 21 × 139991 |
| Prime factorization | 27997 | 2 × 13999 |
| Divisors count | 2 | 4 |
| Divisors | 1, 27997 | 1, 2, 13999, 27998 |
| Number of properties | 5 | 1 |
| Cousin primes (1st member) | 447th | |
| Harmonic primes | 1140th | |
| Isolated primes | 2164th | |
| Primes | 3055th | |
| Pythagorean primes | 1522nd | |
| Semiprimes | 6982nd | |
| Roman numberals | ||
| Base 2 | 1101101010111012 | 1101101010111102 |
| Base 3 | 11021012213 | 11021012223 |
| Base 4 | 123111314 | 123111324 |
| Base 5 | 13434425 | 13434435 |
| Base 6 | 3333416 | 3333426 |
| Base 7 | 1444247 | 1444257 |
| Base 8 | 665358 | 665368 |
| Base 9 | 423579 | 423589 |
| Base 10 | 2799710 | 2799810 |
| Base 11 | 1a04211 | 1a04311 |
| Base 12 | 1425112 | 1425212 |
| Base 13 | c98813 | c98913 |
| Base 14 | a2bb14 | a2bc14 |
| Base 15 | 846715 | 846815 |
| Base 16 | 6d5d16 | 6d5e16 |