Compare 195 vs 197
| Property | 195 | 197 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 51 × 131 | 1971 |
| Prime factorization | 3 × 5 × 13 | 197 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 5, 13, 15, 39, 65, 195 | 1, 197 |
| Number of properties | 0 | 13 |
| Additive primes | 26th | |
| Centered heptagonal primes | 3rd | |
| Chen primes | 35th | |
| Cousin primes (2nd member) | 14th | |
| Left-truncatable primes | 20th | |
| Primes | 45th | |
| Prime quadruplets (3rd member) | 4th | |
| Prime triplets (2nd member) | 14th | |
| Prime triplets (3rd member) | 13th | |
| Pythagorean primes | 21st | |
| Sexy primes (2nd member) | 25th | |
| Twin primes (1st member) | 15th | |
| Ulam primes | 9th | |
| Roman numberals | CXCV | CXCVII |
| Base 2 | 110000112 | 110001012 |
| Base 3 | 210203 | 210223 |
| Base 4 | 30034 | 30114 |
| Base 5 | 12405 | 12425 |
| Base 6 | 5236 | 5256 |
| Base 7 | 3667 | 4017 |
| Base 8 | 3038 | 3058 |
| Base 9 | 2369 | 2389 |
| Base 10 | 19510 | 19710 |
| Base 11 | 16811 | 16a11 |
| Base 12 | 14312 | 14512 |
| Base 13 | 12013 | 12213 |
| Base 14 | dd14 | 10114 |
| Base 15 | d015 | d215 |
| Base 16 | c316 | c516 |