Compare 681407 vs 681418
| Property | 681407 | 681418 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6814071 | 21 × 3407091 |
| Prime factorization | 681407 | 2 × 340709 |
| Divisors count | 2 | 4 |
| Divisors | 1, 681407 | 1, 2, 340709, 681418 |
| Number of properties | 5 | 1 |
| Chen primes | 21544th | |
| Cousin primes (2nd member) | 5948th | |
| Primes | 55170th | |
| Prime triplets (2nd member) | 2166th | |
| Semiprimes | 145584th | |
| Twin primes (1st member) | 5946th | |
| Roman numberals | ||
| Base 2 | 101001100101101111112 | 101001100101110010102 |
| Base 3 | 10211212010223 | 10211212012013 |
| Base 4 | 22121123334 | 22121130224 |
| Base 5 | 1333011125 | 1333011335 |
| Base 6 | 223343556 | 223344146 |
| Base 7 | 55354167 | 55354337 |
| Base 8 | 24626778 | 24627128 |
| Base 9 | 12476389 | 12476519 |
| Base 10 | 68140710 | 68141810 |
| Base 11 | 425a5111 | 425a6111 |
| Base 12 | 28a3bb12 | 28a40a12 |
| Base 13 | 1ab1cc13 | 1ab20a13 |
| Base 14 | 13a47d14 | 13a48a14 |
| Base 15 | d6d7215 | d6d7d15 |
| Base 16 | a65bf16 | a65ca16 |