3 × 13 × 21563

Prime Factor Structure

Factorization String 3 × 13 × 21563

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,207,584

Proper Divisor Sum 366,627

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #840943 ← → #840967

1 3 13 39 21,563 64,689 280,319 840,957

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

840,957 2,522,872 1,261,436 630,718 315,359 946,078 473,039 1,419,118 709,559 2,128,678 1,064,339 3,193,018 1,596,509 4,789,528 2,394,764 1,197,382 598,691 1,796,074 898,037 2,694,112 1,347,056 673,528 336,764 168,382 84,191 252,574 126,287 378,862 189,431 568,294 284,147 852,442 426,221 1,278,664 639,332 319,666 159,833 479,500 239,750 119,875 359,626 179,813 539,440 269,720 134,860 67,430 33,715 101,146 50,573 151,720 75,860 37,930 18,965 56,896 28,448 14,224 7,112 3,556 1,778 889

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