3² × 13 × 1621

Prime Factor Structure

Factorization String 3^2 × 13 × 1621

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 295,204

Proper Divisor Sum 105,547

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #189653 ← → #189661

1 3 9 13 39 117 1,621 4,863 14,589 21,073 63,219 189,657

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

189,657 568,972 284,486 142,243 426,730 213,365 640,096 320,048 160,024 80,012 40,006 20,003 60,010 30,005 90,016 45,008 22,504 11,252 5,626 2,813 8,440 4,220 2,110 1,055 3,166 1,583 4,750 2,375 7,126 3,563 10,690 5,345 16,036 8,018 4,009 12,028 6,014 3,007 9,022 4,511 13,534 6,767 20,302 10,151 30,454 15,227 45,682 22,841 68,524 34,262 17,131 51,394 25,697 77,092 38,546 19,273 57,820 28,910 14,455 43,366

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