3 × 5 × 7 × 1987

Prime Factor Structure

Factorization String 3 × 5 × 7 × 1987

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 381,696

Proper Divisor Sum 173,061

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #208631 ← → #208657

1 3 5 7 15 21 35 105 1,987 5,961 9,935 13,909 29,805 41,727 69,545 208,635

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

208,635 625,906 312,953 938,860 469,430 234,715 704,146 352,073 1,056,220 528,110 264,055 792,166 396,083 1,188,250 594,125 1,782,376 891,188 445,594 222,797 668,392 334,196 167,098 83,549 250,648 125,324 62,662 31,331 93,994 46,997 140,992 70,496 35,248 17,624 8,812 4,406 2,203 6,610 3,305 9,916 4,958 2,479 7,438 3,719 11,158 5,579 16,738 8,369 25,108 12,554 6,277 18,832 9,416 4,708 2,354 1,177 3,532 1,766 883 2,650 1,325

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