215857

Prime Factor Structure

Factorization String 215857

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 215,858

Proper Divisor Sum 1

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #215851 ← → #215863

1 215,857

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

215,857 647,572 323,786 161,893 485,680 242,840 121,420 60,710 30,355 91,066 45,533 136,600 68,300 34,150 17,075 51,226 25,613 76,840 38,420 19,210 9,605 28,816 14,408 7,204 3,602 1,801 5,404 2,702 1,351 4,054 2,027 6,082 3,041 9,124 4,562 2,281 6,844 3,422 1,711 5,134 2,567 7,702 3,851 11,554 5,777 17,332 8,666 4,333 13,000 6,500 3,250 1,625 4,876 2,438 1,219 3,658 1,829 5,488 2,744 1,372

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