Compare 204979 vs 204989
| Property | 204979 | 204989 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2049791 | 3591 × 5711 |
| Prime factorization | 204979 | 359 × 571 |
| Divisors count | 2 | 4 |
| Divisors | 1, 204979 | 1, 359, 571, 204989 |
| Number of properties | 6 | 1 |
| Additive primes | 7411th | |
| Cousin primes (1st member) | 2179th | |
| Isolated primes | 13973rd | |
| Primes | 18380th | |
| Semiprimes | 46330th | |
| Sexy primes (2nd member) | 4376th | |
| Ulam primes | 1321st | |
| Roman numberals | ||
| Base 2 | 1100100000101100112 | 1100100000101111012 |
| Base 3 | 1011020112113 | 1011020120123 |
| Base 4 | 3020023034 | 3020023314 |
| Base 5 | 230244045 | 230244245 |
| Base 6 | 42205516 | 42210056 |
| Base 7 | 15124157 | 15124317 |
| Base 8 | 6202638 | 6202758 |
| Base 9 | 3421549 | 3421659 |
| Base 10 | 20497910 | 20498910 |
| Base 11 | 13000511 | 13001411 |
| Base 12 | 9a75712 | 9a76512 |
| Base 13 | 723b813 | 723c513 |
| Base 14 | 549b514 | 549c114 |
| Base 15 | 40b0415 | 40b0e15 |
| Base 16 | 320b316 | 320bd16 |