Compare 201813 vs 201820
| Property | 201813 | 201820 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 31 × 672711 | 22 × 51 × 100911 |
| Prime factorization | 3 × 67271 | 2 × 2 × 5 × 10091 |
| Divisors count | 4 | 12 |
| Divisors | 1, 3, 67271, 201813 | 1, 2, 4, 5, 10, 20, 10091, 20182, 40364, 50455, 100910, 201820 |
| Number of properties | 1 | 0 |
| Semiprimes | 45626th | |
| Roman numberals | ||
| Base 2 | 1100010100010101012 | 1100010100010111002 |
| Base 3 | 1010202111203 | 1010202112113 |
| Base 4 | 3011011114 | 3011011304 |
| Base 5 | 224242235 | 224242405 |
| Base 6 | 41541536 | 41542046 |
| Base 7 | 15002437 | 15002537 |
| Base 8 | 6121258 | 6121348 |
| Base 9 | 3367469 | 3367549 |
| Base 10 | 20181310 | 20182010 |
| Base 11 | 12869711 | 1286a311 |
| Base 12 | 9895912 | 9896412 |
| Base 13 | 70b2113 | 70b2813 |
| Base 14 | 5379314 | 5379a14 |
| Base 15 | 3ebe315 | 3ebea15 |
| Base 16 | 3145516 | 3145c16 |