5 × 19 × 43 × 157

Prime Factor Structure

Factorization String 5 × 19 × 43 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 834,240

Proper Divisor Sum 192,895

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #641327 ← → #641371

1 5 19 43 95 157 215 785 817 2,983 4,085 6,751 14,915 33,755 128,269 641,345

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

641,345 1,924,036 962,018 481,009 1,443,028 721,514 360,757 1,082,272 541,136 270,568 135,284 67,642 33,821 101,464 50,732 25,366 12,683 38,050 19,025 57,076 28,538 14,269 42,808 21,404 10,702 5,351 16,054 8,027 24,082 12,041 36,124 18,062 9,031 27,094 13,547 40,642 20,321 60,964 30,482 15,241 45,724 22,862 11,431 34,294 17,147 51,442 25,721 77,164 38,582 19,291 57,874 28,937 86,812 43,406 21,703 65,110 32,555 97,666 48,833 146,500

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.