Compare 208887 vs 208889
| Property | 208887 | 208889 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 31 × 74 × 291 | 2088891 |
| Prime factorization | 3 × 7 × 7 × 7 × 7 × 29 | 208889 |
| Divisors count | 20 | 2 |
| Divisors | 1, 3, 7, 21, 29, 49, 87, 147, 203, 343, 609, 1029, 1421, 2401, 4263, 7203, 9947, 29841, 69629, 208887 | 1, 208889 |
| Number of properties | 0 | 6 |
| Chen primes | 7815th | |
| Harmonic primes | 7004th | |
| Primes | 18709th | |
| Pythagorean primes | 9344th | |
| Twin primes (1st member) | 2241st | |
| Ulam primes | 1345th | |
| Roman numberals | ||
| Base 2 | 1100101111111101112 | 1100101111111110012 |
| Base 3 | 1011211121203 | 1011211121223 |
| Base 4 | 3023333134 | 3023333214 |
| Base 5 | 231410225 | 231410245 |
| Base 6 | 42510236 | 42510256 |
| Base 7 | 15300007 | 15300027 |
| Base 8 | 6277678 | 6277718 |
| Base 9 | 3474769 | 3474789 |
| Base 10 | 20888710 | 20888910 |
| Base 11 | 132a3811 | 132a3a11 |
| Base 12 | a0a7312 | a0a7512 |
| Base 13 | 7410313 | 7410513 |
| Base 14 | 561a714 | 561a914 |
| Base 15 | 41d5c15 | 41d5e15 |
| Base 16 | 32ff716 | 32ff916 |