Compare 202111 vs 202121
| Property | 202111 | 202121 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 71 × 131 × 22211 | 2021211 |
| Prime factorization | 7 × 13 × 2221 | 202121 |
| Divisors count | 8 | 2 |
| Divisors | 1, 7, 13, 91, 2221, 15547, 28873, 202111 | 1, 202121 |
| Number of properties | 0 | 6 |
| Chen primes | 7591st | |
| Harmonic primes | 6814th | |
| Isolated primes | 13812th | |
| Primes | 18159th | |
| Pythagorean primes | 9066th | |
| Sexy primes (1st member) | 4332nd | |
| Roman numberals | ||
| Base 2 | 1100010101011111112 | 1100010101100010012 |
| Base 3 | 1010210201213 | 1010210202223 |
| Base 4 | 3011113334 | 3011120214 |
| Base 5 | 224314215 | 224314415 |
| Base 6 | 41554116 | 41554256 |
| Base 7 | 15011507 | 15011637 |
| Base 8 | 6125778 | 6126118 |
| Base 9 | 3372179 | 3372289 |
| Base 10 | 20211110 | 20212110 |
| Base 11 | 12893811 | 12894711 |
| Base 12 | 98b6712 | 98b7512 |
| Base 13 | 70cc013 | 70cca13 |
| Base 14 | 5392714 | 5393314 |
| Base 15 | 3ed4115 | 3ed4b15 |
| Base 16 | 3157f16 | 3158916 |