2³ × 5 × 13 × 1237

Prime Factor Structure

Factorization String 2^3 × 5 × 13 × 1237

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 1,559,880

Proper Divisor Sum 916,640

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #643231 ← → #643243

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

643,240 321,620 160,810 80,405 241,216 120,608 60,304 30,152 15,076 7,538 3,769 11,308 5,654 2,827 8,482 4,241 12,724 6,362 3,181 9,544 4,772 2,386 1,193 3,580 1,790 895 2,686 1,343 4,030 2,015 6,046 3,023 9,070 4,535 13,606 6,803 20,410 10,205 30,616 15,308 7,654 3,827 11,482 5,741 17,224 8,612 4,306 2,153 6,460 3,230 1,615 4,846 2,423 7,270 3,635 10,906 5,453 16,360 8,180 4,090

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