2² × 13 × 12377

Prime Factor Structure

Factorization String 2^2 × 13 × 12377

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 1,213,044

Proper Divisor Sum 569,440

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #643589 ← → #643619

1 2 4 13 26 52 12,377 24,754 49,508 160,901 321,802 643,604

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

643,604 321,802 160,901 482,704 241,352 120,676 60,338 30,169 90,508 45,254 22,627 67,882 33,941 101,824 50,912 25,456 12,728 6,364 3,182 1,591 4,774 2,387 7,162 3,581 10,744 5,372 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.