3 × 5 × 7 × 6581

Prime Factor Structure

Factorization String 3 × 5 × 7 × 6581

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,263,744

Proper Divisor Sum 572,739

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #691001 ← → #691037

1 3 5 7 15 21 35 105 6,581 19,743 32,905 46,067 98,715 138,201 230,335 691,005

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

691,005 2,073,016 1,036,508 518,254 259,127 777,382 388,691 1,166,074 583,037 1,749,112 874,556 437,278 218,639 655,918 327,959 983,878 491,939 1,475,818 737,909 2,213,728 1,106,864 553,432 276,716 138,358 69,179 207,538 103,769 311,308 155,654 77,827 233,482 116,741 350,224 175,112 87,556 43,778 21,889 65,668 32,834 16,417 49,252 24,626 12,313 36,940 18,470 9,235 27,706 13,853 41,560 20,780 10,390 5,195 15,586 7,793 23,380 11,690 5,845 17,536 8,768 4,384

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