Compare 202121 vs 202126
| Property | 202121 | 202126 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2021211 | 21 × 1010631 |
| Prime factorization | 202121 | 2 × 101063 |
| Divisors count | 2 | 4 |
| Divisors | 1, 202121 | 1, 2, 101063, 202126 |
| Number of properties | 6 | 1 |
| Chen primes | 7591st | |
| Harmonic primes | 6814th | |
| Isolated primes | 13812th | |
| Primes | 18159th | |
| Pythagorean primes | 9066th | |
| Semiprimes | 45685th | |
| Sexy primes (1st member) | 4332nd | |
| Roman numberals | ||
| Base 2 | 1100010101100010012 | 1100010101100011102 |
| Base 3 | 1010210202223 | 1010210210113 |
| Base 4 | 3011120214 | 3011120324 |
| Base 5 | 224314415 | 224320015 |
| Base 6 | 41554256 | 41554346 |
| Base 7 | 15011637 | 15012017 |
| Base 8 | 6126118 | 6126168 |
| Base 9 | 3372289 | 3372349 |
| Base 10 | 20212110 | 20212610 |
| Base 11 | 12894711 | 12895111 |
| Base 12 | 98b7512 | 98b7a12 |
| Base 13 | 70cca13 | 7100213 |
| Base 14 | 5393314 | 5393814 |
| Base 15 | 3ed4b15 | 3ed5115 |
| Base 16 | 3158916 | 3158e16 |