Compare 202121 vs 202231
| Property | 202121 | 202231 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2021211 | 2022311 |
| Prime factorization | 202121 | 202231 |
| Divisors count | 2 | 2 |
| Divisors | 1, 202121 | 1, 202231 |
| Number of properties | 6 | 4 |
| Chen primes | 7591st | 7593rd |
| Harmonic primes | 6814th | |
| Isolated primes | 13812th | 13817th |
| Lucky primes | 2331st | |
| Primes | 18159th | 18166th |
| Pythagorean primes | 9066th | |
| Sexy primes (1st member) | 4332nd | |
| Roman numberals | ||
| Base 2 | 1100010101100010012 | 1100010101111101112 |
| Base 3 | 1010210202223 | 1010211020013 |
| Base 4 | 3011120214 | 3011133134 |
| Base 5 | 224314415 | 224324115 |
| Base 6 | 41554256 | 42001316 |
| Base 7 | 15011637 | 15014117 |
| Base 8 | 6126118 | 6127678 |
| Base 9 | 3372289 | 3373619 |
| Base 10 | 20212110 | 20223110 |
| Base 11 | 12894711 | 128a3711 |
| Base 12 | 98b7512 | 9904712 |
| Base 13 | 70cca13 | 7108313 |
| Base 14 | 5393314 | 539b114 |
| Base 15 | 3ed4b15 | 3edc115 |
| Base 16 | 3158916 | 315f716 |