Compare 639843 vs 639853
| Property | 639843 | 639853 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 2132811 | 6398531 |
| Prime factorization | 3 × 213281 | 639853 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 213281, 639843 | 1, 639853 |
| Number of properties | 1 | 4 |
| Cousin primes (1st member) | 5629th | |
| Primes | 52065th | |
| Prime triplets (2nd member) | 2062nd | |
| Semiprimes | 137108th | |
| Twin primes (2nd member) | 5631st | |
| Roman numberals | ||
| Base 2 | 100111000011011000112 | 100111000011011011012 |
| Base 3 | 10121112002203 | 10121112010213 |
| Base 4 | 21300312034 | 21300312314 |
| Base 5 | 1304333335 | 1304334035 |
| Base 6 | 214141236 | 214141416 |
| Base 7 | 53033017 | 53033147 |
| Base 8 | 23415438 | 23415558 |
| Base 9 | 11746269 | 11746379 |
| Base 10 | 63984310 | 63985310 |
| Base 11 | 3a77a611 | 3a780511 |
| Base 12 | 26a34312 | 26a35112 |
| Base 13 | 19530913 | 19531613 |
| Base 14 | 12927114 | 12927b14 |
| Base 15 | c98b315 | c98bd15 |
| Base 16 | 9c36316 | 9c36d16 |