Compare 39881 vs 39887
| Property | 39881 | 39887 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 191 × 20991 | 398871 |
| Prime factorization | 19 × 2099 | 39887 |
| Divisors count | 4 | 2 |
| Divisors | 1, 19, 2099, 39881 | 1, 39887 |
| Number of properties | 1 | 7 |
| Chen primes | 1971st | |
| Cousin primes (2nd member) | 580th | |
| Emirps | 975th | |
| Harmonic primes | 1562nd | |
| Isolated primes | 3014th | |
| Long primes | 1583rd | |
| Primes | 4195th | |
| Semiprimes | 9761st | |
| Roman numberals | ||
| Base 2 | 10011011110010012 | 10011011110011112 |
| Base 3 | 20002010023 | 20002010223 |
| Base 4 | 212330214 | 212330334 |
| Base 5 | 22340115 | 22340225 |
| Base 6 | 5043456 | 5043556 |
| Base 7 | 2241627 | 2242017 |
| Base 8 | 1157118 | 1157178 |
| Base 9 | 606329 | 606389 |
| Base 10 | 3988110 | 3988710 |
| Base 11 | 27a6611 | 27a7111 |
| Base 12 | 1b0b512 | 1b0bb12 |
| Base 13 | 151ca13 | 1520313 |
| Base 14 | 1076914 | 1077114 |
| Base 15 | bc3b15 | bc4215 |
| Base 16 | 9bc916 | 9bcf16 |