2 × 5 × 19 × 3373

Prime Factor Structure

Factorization String 2 × 5 × 19 × 3373

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,214,640

Proper Divisor Sum 573,770

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #640859 ← → #640873

1 2 5 10 19 38 95 190 3,373 6,746 16,865 33,730 64,087 128,174 320,435 640,870

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

640,870 320,435 961,306 480,653 1,441,960 720,980 360,490 180,245 540,736 270,368 135,184 67,592 33,796 16,898 8,449 25,348 12,674 6,337 19,012 9,506 4,753 14,260 7,130 3,565 10,696 5,348 2,674 1,337 4,012 2,006 1,003 3,010 1,505 4,516 2,258 1,129 3,388 1,694 847 2,542 1,271 3,814 1,907 5,722 2,861 8,584 4,292 2,146 1,073 3,220 1,610 805 2,416 1,208 604 302 151 454 227 682

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