3 × 7 × 647 × 1291

Prime Factor Structure

Factorization String 3 × 7 × 647 × 1291

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 26,790,912

Proper Divisor Sum 9,250,095

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #17540813 ← → #17540839

1 3 7 21 647 1,291 1,941 3,873 4,529 9,037 13,587 27,111 835,277 2,505,831 5,846,939 17,540,817

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

17,540,817 52,622,452 26,311,226 13,155,613 39,466,840 19,733,420 9,866,710 4,933,355 14,800,066 7,400,033 22,200,100 11,100,050 5,550,025 16,650,076 8,325,038 4,162,519 12,487,558 6,243,779 18,731,338 9,365,669 28,097,008 14,048,504 7,024,252 3,512,126 1,756,063 5,268,190 2,634,095 7,902,286 3,951,143 11,853,430 5,926,715 17,780,146 8,890,073 26,670,220 13,335,110 6,667,555 20,002,666 10,001,333 30,004,000 15,002,000 7,501,000 3,750,500 1,875,250 937,625 2,812,876 1,406,438 703,219 2,109,658 1,054,829 3,164,488 1,582,244 791,122 395,561 1,186,684 593,342 296,671 890,014 445,007 1,335,022 667,511

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