2 × 320389

Prime Factor Structure

Factorization String 2 × 320389

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 961,170

Proper Divisor Sum 320,392

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #640777 ← → #640793

1 2 320,389 640,778

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

640,778 320,389 961,168 480,584 240,292 120,146 60,073 180,220 90,110 45,055 135,166 67,583 202,750 101,375 304,126 152,063 456,190 228,095 684,286 342,143 1,026,430 513,215 1,539,646 769,823 2,309,470 1,154,735 3,464,206 1,732,103 5,196,310 2,598,155 7,794,466 3,897,233 11,691,700 5,845,850 2,922,925 8,768,776 4,384,388 2,192,194 1,096,097 3,288,292 1,644,146 822,073 2,466,220 1,233,110 616,555 1,849,666 924,833 2,774,500 1,387,250 693,625 2,080,876 1,040,438 520,219 1,560,658 780,329 2,340,988 1,170,494 585,247 1,755,742 877,871

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