Compare 199811 vs 199821
| Property | 199811 | 199821 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 1998111 | 31 × 431 × 15491 |
| Prime factorization | 199811 | 3 × 43 × 1549 |
| Divisors count | 2 | 8 |
| Divisors | 1, 199811 | 1, 3, 43, 129, 1549, 4647, 66607, 199821 |
| Number of properties | 8 | 0 |
| Additive primes | 7214th | |
| Chen primes | 7520th | |
| Cousin primes (2nd member) | 2134th | |
| Harmonic primes | 6753rd | |
| Long primes | 6734th | |
| Primes | 17970th | |
| Prime triplets (2nd member) | 840th | |
| Twin primes (1st member) | 2159th | |
| Roman numberals | ||
| Base 2 | 1100001100100000112 | 1100001100100011012 |
| Base 3 | 1010110021023 | 1010110022103 |
| Base 4 | 3003020034 | 3003020314 |
| Base 5 | 223432215 | 223432415 |
| Base 6 | 41410156 | 41410336 |
| Base 7 | 14613537 | 14613667 |
| Base 8 | 6062038 | 6062158 |
| Base 9 | 3340729 | 3340839 |
| Base 10 | 19981110 | 19982110 |
| Base 11 | 12713711 | 12714611 |
| Base 12 | 9776b12 | 9777912 |
| Base 13 | 6cc4113 | 6cc4b13 |
| Base 14 | 52b6314 | 52b6d14 |
| Base 15 | 3e30b15 | 3e31615 |
| Base 16 | 30c8316 | 30c8d16 |