Compare 221405 vs 221411
| Property | 221405 | 221411 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 442811 | 2214111 |
| Prime factorization | 5 × 44281 | 221411 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 44281, 221405 | 1, 221411 |
| Number of properties | 1 | 7 |
| Additive primes | 7983rd | |
| Chen primes | 8222nd | |
| Harmonic primes | 7406th | |
| Primes | 19728th | |
| Semiprimes | 49826th | |
| Sophie germain primes | 2237th | |
| Twin primes (1st member) | 2341st | |
| Ulam primes | 1407th | |
| Roman numberals | ||
| Base 2 | 1101100000110111012 | 1101100000111000112 |
| Base 3 | 1020202010123 | 1020202011023 |
| Base 4 | 3120031314 | 3120032034 |
| Base 5 | 240411105 | 240411215 |
| Base 6 | 44250056 | 44250156 |
| Base 7 | 16113327 | 16113417 |
| Base 8 | 6603358 | 6603438 |
| Base 9 | 3666359 | 3666429 |
| Base 10 | 22140510 | 22141110 |
| Base 11 | 14138811 | 14139311 |
| Base 12 | a816512 | a816b12 |
| Base 13 | 79a1213 | 79a1813 |
| Base 14 | 5a98914 | 5a99114 |
| Base 15 | 4590515 | 4590b15 |
| Base 16 | 360dd16 | 360e316 |