2 × 321709

Prime Factor Structure

Factorization String 2 × 321709

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 965,130

Proper Divisor Sum 321,712

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #643403 ← → #643421

1 2 321,709 643,418

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

643,418 321,709 965,128 482,564 241,282 120,641 361,924 180,962 90,481 271,444 135,722 67,861 203,584 101,792 50,896 25,448 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.