Compare 189939 vs 189947
| Property | 189939 | 189947 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 633131 | 1899471 |
| Prime factorization | 3 × 63313 | 189947 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 63313, 189939 | 1, 189947 |
| Number of properties | 1 | 4 |
| Chen primes | 7226th | |
| Harmonic primes | 6434th | |
| Primes | 17163rd | |
| Semiprimes | 43057th | |
| Twin primes (1st member) | 2075th | |
| Roman numberals | ||
| Base 2 | 1011100101111100112 | 1011100101111110112 |
| Base 3 | 1001221122103 | 1001221200023 |
| Base 4 | 2321133034 | 2321133234 |
| Base 5 | 220342245 | 220342425 |
| Base 6 | 40232036 | 40232156 |
| Base 7 | 14205217 | 14205327 |
| Base 8 | 5627638 | 5627738 |
| Base 9 | 3184839 | 3185029 |
| Base 10 | 18993910 | 18994710 |
| Base 11 | 11a78211 | 11a78a11 |
| Base 12 | 91b0312 | 91b0b12 |
| Base 13 | 685b913 | 685c413 |
| Base 14 | 4d31114 | 4d31914 |
| Base 15 | 3b42915 | 3b43215 |
| Base 16 | 2e5f316 | 2e5fb16 |