2 × 7² × 216571

Prime Factor Structure

Factorization String 2 × 7^2 × 216571

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 37,033,812

Proper Divisor Sum 15,809,854

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #21223957 ← → #21223981

1 2 7 14 49 98 216,571 433,142 1,515,997 3,031,994 10,611,979 21,223,958

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

21,223,958 10,611,979 31,835,938 15,917,969 47,753,908 23,876,954 11,938,477 35,815,432 17,907,716 8,953,858 4,476,929 13,430,788 6,715,394 3,357,697 10,073,092 5,036,546 2,518,273 7,554,820 3,777,410 1,888,705 5,666,116 2,833,058 1,416,529 4,249,588 2,124,794 1,062,397 3,187,192 1,593,596 796,798 398,399 1,195,198 597,599 1,792,798 896,399 2,689,198 1,344,599 4,033,798 2,016,899 6,050,698 3,025,349 9,076,048 4,538,024 2,269,012 1,134,506 567,253 1,701,760 850,880 425,440 212,720 106,360 53,180 26,590 13,295 39,886 19,943 59,830 29,915 89,746 44,873 134,620

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