5 × 7 × 18311

Prime Factor Structure

Factorization String 5 × 7 × 18311

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 878,976

Proper Divisor Sum 238,091

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #640873 ← → #640891

1 5 7 35 18,311 91,555 128,177 640,885

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

640,885 1,922,656 961,328 480,664 240,332 120,166 60,083 180,250 90,125 270,376 135,188 67,594 33,797 101,392 50,696 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.