3³ × 691

Prime Factor Structure

Factorization String 3^3 × 691

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 27,680

Proper Divisor Sum 9,023

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #18637 ← → #18661

1 3 9 27 691 2,073 6,219 18,657

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

18,657 55,972 27,986 13,993 41,980 20,990 10,495 31,486 15,743 47,230 23,615 70,846 35,423 106,270 53,135 159,406 79,703 239,110 119,555 358,666 179,333 538,000 269,000 134,500 67,250 33,625 100,876 50,438 25,219 75,658 37,829 113,488 56,744 28,372 14,186 7,093 21,280 10,640 5,320 2,660 1,330 665 1,996 998 499 1,498 749 2,248 1,124 562 281 844 422 211 634 317 952 476 238 119

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