3⁵ × 173 × 509

Prime Factor Structure

Factorization String 3^5 × 173 × 509

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 32,301,360

Proper Divisor Sum 10,903,509

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #21397847 ← → #21397867

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

21,397,851 64,193,554 32,096,777 96,290,332 48,145,166 24,072,583 72,217,750 36,108,875 108,326,626 54,163,313 162,489,940 81,244,970 40,622,485 121,867,456 60,933,728 30,466,864 15,233,432 7,616,716 3,808,358 1,904,179 5,712,538 2,856,269 8,568,808 4,284,404 2,142,202 1,071,101 3,213,304 1,606,652 803,326 401,663 1,204,990 602,495 1,807,486 903,743 2,711,230 1,355,615 4,066,846 2,033,423 6,100,270 3,050,135 9,150,406 4,575,203 13,725,610 6,862,805 20,588,416 10,294,208 5,147,104 2,573,552 1,286,776 643,388 321,694 160,847 482,542 241,271 723,814 361,907 1,085,722 542,861 1,628,584 814,292

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