Compare 201986 vs 201997
| Property | 201986 | 201997 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 231 × 43911 | 2019971 |
| Prime factorization | 2 × 23 × 4391 | 201997 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 23, 46, 4391, 8782, 100993, 201986 | 1, 201997 |
| Number of properties | 0 | 4 |
| Cousin primes (1st member) | 2155th | |
| Isolated primes | 13803rd | |
| Primes | 18148th | |
| Pythagorean primes | 9060th | |
| Roman numberals | ||
| Base 2 | 1100010101000000102 | 1100010101000011012 |
| Base 3 | 1010210012223 | 1010210021013 |
| Base 4 | 3011100024 | 3011100314 |
| Base 5 | 224304215 | 224304425 |
| Base 6 | 41550426 | 41551016 |
| Base 7 | 15006117 | 15006257 |
| Base 8 | 6124028 | 6124158 |
| Base 9 | 3370589 | 3370719 |
| Base 10 | 20198610 | 20199710 |
| Base 11 | 12883411 | 12884411 |
| Base 12 | 98a8212 | 98a9112 |
| Base 13 | 70c2513 | 70c3313 |
| Base 14 | 5387814 | 5388514 |
| Base 15 | 3ecab15 | 3ecb715 |
| Base 16 | 3150216 | 3150d16 |