3 × 7 × 13 × 1571

Prime Factor Structure

Factorization String 3 × 7 × 13 × 1571

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 704,256

Proper Divisor Sum 275,373

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #428873 ← → #428899

1 3 7 13 21 39 91 273 1,571 4,713 10,997 20,423 32,991 61,269 142,961 428,883

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

428,883 1,286,650 643,325 1,929,976 964,988 482,494 241,247 723,742 361,871 1,085,614 542,807 1,628,422 814,211 2,442,634 1,221,317 3,663,952 1,831,976 915,988 457,994 228,997 686,992 343,496 171,748 85,874 42,937 128,812 64,406 32,203 96,610 48,305 144,916 72,458 36,229 108,688 54,344 27,172 13,586 6,793 20,380 10,190 5,095 15,286 7,643 22,930 11,465 34,396 17,198 8,599 25,798 12,899 38,698 19,349 58,048 29,024 14,512 7,256 3,628 1,814 907 2,722

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