3² × 43²

Prime Factor Structure

Factorization String 3^2 × 43^2

Distinct Prime Factors 2

Square Status Yes (√16641 = 129)

Abundance Measure Deficient

Analytical Properties

Total Divisors 9

Divisor Sum (σ) 24,609

Proper Divisor Sum 7,968

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #16633 ← → #16649

1 3 9 43 129 387 1,849 5,547 16,641

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

16,641 49,924 24,962 12,481 37,444 18,722 9,361 28,084 14,042 7,021 21,064 10,532 5,266 2,633 7,900 3,950 1,975 5,926 2,963 8,890 4,445 13,336 6,668 3,334 1,667 5,002 2,501 7,504 3,752 1,876 938 469 1,408 704 352 176 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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