3 × 7 × 30631

Prime Factor Structure

Factorization String 3 × 7 × 30631

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 980,224

Proper Divisor Sum 336,973

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #643243 ← → #643273

1 3 7 21 30,631 91,893 214,417 643,251

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

643,251 1,929,754 964,877 2,894,632 1,447,316 723,658 361,829 1,085,488 542,744 271,372 135,686 67,843 203,530 101,765 305,296 152,648 76,324 38,162 19,081 57,244 28,622 14,311 42,934 21,467 64,402 32,201 96,604 48,302 24,151 72,454 36,227 108,682 54,341 163,024 81,512 40,756 20,378 10,189 30,568 15,284 7,642 3,821 11,464 5,732 2,866 1,433 4,300 2,150 1,075 3,226 1,613 4,840 2,420 1,210 605 1,816 908 454 227 682

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