3 × 5² × 285289

Prime Factor Structure

Factorization String 3 × 5^2 × 285289

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 35,375,960

Proper Divisor Sum 13,979,285

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #21396673 ← → #21396691

1 3 5 15 25 75 285,289 855,867 1,426,445 4,279,335 7,132,225 21,396,675

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

21,396,675 64,190,026 32,095,013 96,285,040 48,142,520 24,071,260 12,035,630 6,017,815 18,053,446 9,026,723 27,080,170 13,540,085 40,620,256 20,310,128 10,155,064 5,077,532 2,538,766 1,269,383 3,808,150 1,904,075 5,712,226 2,856,113 8,568,340 4,284,170 2,142,085 6,426,256 3,213,128 1,606,564 803,282 401,641 1,204,924 602,462 301,231 903,694 451,847 1,355,542 677,771 2,033,314 1,016,657 3,049,972 1,524,986 762,493 2,287,480 1,143,740 571,870 285,935 857,806 428,903 1,286,710 643,355 1,930,066 965,033 2,895,100 1,447,550 723,775 2,171,326 1,085,663 3,256,990 1,628,495 4,885,486

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