2 × 321679

Prime Factor Structure

Factorization String 2 × 321679

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 965,040

Proper Divisor Sum 321,682

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #643303 ← → #643369

1 2 321,679 643,358

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

643,358 321,679 965,038 482,519 1,447,558 723,779 2,171,338 1,085,669 3,257,008 1,628,504 814,252 407,126 203,563 610,690 305,345 916,036 458,018 229,009 687,028 343,514 171,757 515,272 257,636 128,818 64,409 193,228 96,614 48,307 144,922 72,461 217,384 108,692 54,346 27,173 81,520 40,760 20,380 10,190 5,095 15,286 7,643 22,930 11,465 34,396 17,198 8,599 25,798 12,899 38,698 19,349 58,048 29,024 14,512 7,256 3,628 1,814 907 2,722 1,361 4,084

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