3 × 7 × 13 × 1721

Prime Factor Structure

Factorization String 3 × 7 × 13 × 1721

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 771,456

Proper Divisor Sum 301,623

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #469823 ← → #469841

1 3 7 13 21 39 91 273 1,721 5,163 12,047 22,373 36,141 67,119 156,611 469,833

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

469,833 1,409,500 704,750 352,375 1,057,126 528,563 1,585,690 792,845 2,378,536 1,189,268 594,634 297,317 891,952 445,976 222,988 111,494 55,747 167,242 83,621 250,864 125,432 62,716 31,358 15,679 47,038 23,519 70,558 35,279 105,838 52,919 158,758 79,379 238,138 119,069 357,208 178,604 89,302 44,651 133,954 66,977 200,932 100,466 50,233 150,700 75,350 37,675 113,026 56,513 169,540 84,770 42,385 127,156 63,578 31,789 95,368 47,684 23,842 11,921 35,764 17,882

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