13 × 664661

Prime Factor Structure

Factorization String 13 × 664661

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 9,305,268

Proper Divisor Sum 664,675

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #8640587 ← → #8640601

1 13 664,661 8,640,593

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

8,640,593 25,921,780 12,960,890 6,480,445 19,441,336 9,720,668 4,860,334 2,430,167 7,290,502 3,645,251 10,935,754 5,467,877 16,403,632 8,201,816 4,100,908 2,050,454 1,025,227 3,075,682 1,537,841 4,613,524 2,306,762 1,153,381 3,460,144 1,730,072 865,036 432,518 216,259 648,778 324,389 973,168 486,584 243,292 121,646 60,823 182,470 91,235 273,706 136,853 410,560 205,280 102,640 51,320 25,660 12,830 6,415 19,246 9,623 28,870 14,435 43,306 21,653 64,960 32,480 16,240 8,120 4,060 2,030 1,015 3,046 1,523

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