3 × 11 × 19 × 1021

Prime Factor Structure

Factorization String 3 × 11 × 19 × 1021

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 981,120

Proper Divisor Sum 340,953

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #640163 ← → #640193

1 3 11 19 33 57 209 627 1,021 3,063 11,231 19,399 33,693 58,197 213,389 640,167

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

640,167 1,920,502 960,251 2,880,754 1,440,377 4,321,132 2,160,566 1,080,283 3,240,850 1,620,425 4,861,276 2,430,638 1,215,319 3,645,958 1,822,979 5,468,938 2,734,469 8,203,408 4,101,704 2,050,852 1,025,426 512,713 1,538,140 769,070 384,535 1,153,606 576,803 1,730,410 865,205 2,595,616 1,297,808 648,904 324,452 162,226 81,113 243,340 121,670 60,835 182,506 91,253 273,760 136,880 68,440 34,220 17,110 8,555 25,666 12,833 38,500 19,250 9,625 28,876 14,438 7,219 21,658 10,829 32,488 16,244 8,122 4,061

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