3 × 13 × 16417

Prime Factor Structure

Factorization String 3 × 13 × 16417

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 919,408

Proper Divisor Sum 279,145

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #640261 ← → #640267

1 3 13 39 16,417 49,251 213,421 640,263

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

640,263 1,920,790 960,395 2,881,186 1,440,593 4,321,780 2,160,890 1,080,445 3,241,336 1,620,668 810,334 405,167 1,215,502 607,751 1,823,254 911,627 2,734,882 1,367,441 4,102,324 2,051,162 1,025,581 3,076,744 1,538,372 769,186 384,593 1,153,780 576,890 288,445 865,336 432,668 216,334 108,167 324,502 162,251 486,754 243,377 730,132 365,066 182,533 547,600 273,800 136,900 68,450 34,225 102,676 51,338 25,669 77,008 38,504 19,252 9,626 4,813 14,440 7,220 3,610 1,805 5,416 2,708 1,354 677

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