5 × 128621

Prime Factor Structure

Factorization String 5 × 128621

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 771,732

Proper Divisor Sum 128,627

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #643099 ← → #643121

1 5 128,621 643,105

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

643,105 1,929,316 964,658 482,329 1,446,988 723,494 361,747 1,085,242 542,621 1,627,864 813,932 406,966 203,483 610,450 305,225 915,676 457,838 228,919 686,758 343,379 1,030,138 515,069 1,545,208 772,604 386,302 193,151 579,454 289,727 869,182 434,591 1,303,774 651,887 1,955,662 977,831 2,933,494 1,466,747 4,400,242 2,200,121 6,600,364 3,300,182 1,650,091 4,950,274 2,475,137 7,425,412 3,712,706 1,856,353 5,569,060 2,784,530 1,392,265 4,176,796 2,088,398 1,044,199 3,132,598 1,566,299 4,698,898 2,349,449 7,048,348 3,524,174 1,762,087 5,286,262

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