Compare 388957 vs 388961
| Property | 388957 | 388961 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 311 × 125471 | 3889611 |
| Prime factorization | 31 × 12547 | 388961 |
| Divisors count | 4 | 2 |
| Divisors | 1, 31, 12547, 388957 | 1, 388961 |
| Number of properties | 1 | 4 |
| Chen primes | 13347th | |
| Primes | 32981st | |
| Semiprimes | 85281st | |
| Twin primes (1st member) | 3713th | |
| Ulam primes | 2368th | |
| Roman numberals | ||
| Base 2 | 10111101111010111012 | 10111101111011000012 |
| Base 3 | 2012021122113 | 2012021122223 |
| Base 4 | 11323311314 | 11323312014 |
| Base 5 | 444213125 | 444213215 |
| Base 6 | 122004216 | 122004256 |
| Base 7 | 32066627 | 32066667 |
| Base 8 | 13675358 | 13675418 |
| Base 9 | 6524849 | 6524889 |
| Base 10 | 38895710 | 38896110 |
| Base 11 | 24625811 | 24626111 |
| Base 12 | 16911112 | 16911512 |
| Base 13 | 10806a13 | 10807113 |
| Base 14 | a1a6914 | a1a6d14 |
| Base 15 | 7a3a715 | 7a3ab15 |
| Base 16 | 5ef5d16 | 5ef6116 |