13 × 37 × 139

Prime Factor Structure

Factorization String 13 × 37 × 139

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 74,480

Proper Divisor Sum 7,621

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #66853 ← → #66863

1 13 37 139 481 1,807 5,143 66,859

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

66,859 200,578 100,289 300,868 150,434 75,217 225,652 112,826 56,413 169,240 84,620 42,310 21,155 63,466 31,733 95,200 47,600 23,800 11,900 5,950 2,975 8,926 4,463 13,390 6,695 20,086 10,043 30,130 15,065 45,196 22,598 11,299 33,898 16,949 50,848 25,424 12,712 6,356 3,178 1,589 4,768 2,384 1,192 596 298 149 448 224 112 56 28 14 7 22 11 34 17 52 26 13

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