2 × 7 × 19 × 3221

Prime Factor Structure

Factorization String 2 × 7 × 19 × 3221

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,546,560

Proper Divisor Sum 689,774

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #856759 ← → #856787

1 2 7 14 19 38 133 266 3,221 6,442 22,547 45,094 61,199 122,398 428,393 856,786

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

856,786 428,393 1,285,180 642,590 321,295 963,886 481,943 1,445,830 722,915 2,168,746 1,084,373 3,253,120 1,626,560 813,280 406,640 203,320 101,660 50,830 25,415 76,246 38,123 114,370 57,185 171,556 85,778 42,889 128,668 64,334 32,167 96,502 48,251 144,754 72,377 217,132 108,566 54,283 162,850 81,425 244,276 122,138 61,069 183,208 91,604 45,802 22,901 68,704 34,352 17,176 8,588 4,294 2,147 6,442 3,221 9,664 4,832 2,416 1,208 604 302 151

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