Compare 201209 vs 201215
| Property | 201209 | 201215 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 2012091 | 51 × 71 × 57491 |
| Prime factorization | 201209 | 5 × 7 × 5749 |
| Divisors count | 2 | 8 |
| Divisors | 1, 201209 | 1, 5, 7, 35, 5749, 28745, 40243, 201215 |
| Number of properties | 6 | 0 |
| Chen primes | 7562nd | |
| Primes | 18078th | |
| Pythagorean primes | 9021st | |
| Sexy primes (2nd member) | 4316th | |
| Sophie germain primes | 2065th | |
| Twin primes (1st member) | 2166th | |
| Roman numberals | ||
| Base 2 | 1100010001111110012 | 1100010001111111112 |
| Base 3 | 1010200000123 | 1010200001023 |
| Base 4 | 3010133214 | 3010133334 |
| Base 5 | 224143145 | 224143305 |
| Base 6 | 41513056 | 41513156 |
| Base 7 | 14654217 | 14654307 |
| Base 8 | 6107718 | 6107778 |
| Base 9 | 3360059 | 3360129 |
| Base 10 | 20120910 | 20121510 |
| Base 11 | 12819811 | 1281a311 |
| Base 12 | 9853512 | 9853b12 |
| Base 13 | 7077813 | 7078113 |
| Base 14 | 5348114 | 5348714 |
| Base 15 | 3e93e15 | 3e94515 |
| Base 16 | 311f916 | 311ff16 |