Compare 199813 vs 199821
| Property | 199813 | 199821 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 1998131 | 31 × 431 × 15491 |
| Prime factorization | 199813 | 3 × 43 × 1549 |
| Divisors count | 2 | 8 |
| Divisors | 1, 199813 | 1, 3, 43, 129, 1549, 4647, 66607, 199821 |
| Number of properties | 10 | 0 |
| Additive primes | 7215th | |
| Harmonic primes | 6754th | |
| Primes | 17971st | |
| Prime triplets (3rd member) | 840th | |
| Pythagorean primes | 8969th | |
| Sexy primes (1st member) | 4294th | |
| Sexy primes (2nd member) | 4293rd | |
| Sexy prime triplets (2nd member) | 865th | |
| Super primes | 2060th | |
| Twin primes (2nd member) | 2159th | |
| Roman numberals | ||
| Base 2 | 1100001100100001012 | 1100001100100011012 |
| Base 3 | 1010110021113 | 1010110022103 |
| Base 4 | 3003020114 | 3003020314 |
| Base 5 | 223432235 | 223432415 |
| Base 6 | 41410216 | 41410336 |
| Base 7 | 14613557 | 14613667 |
| Base 8 | 6062058 | 6062158 |
| Base 9 | 3340749 | 3340839 |
| Base 10 | 19981310 | 19982110 |
| Base 11 | 12713911 | 12714611 |
| Base 12 | 9777112 | 9777912 |
| Base 13 | 6cc4313 | 6cc4b13 |
| Base 14 | 52b6514 | 52b6d14 |
| Base 15 | 3e30d15 | 3e31615 |
| Base 16 | 30c8516 | 30c8d16 |