2² × 19 × 281539

Prime Factor Structure

Factorization String 2^2 × 19 × 281539

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 39,415,600

Proper Divisor Sum 18,018,636

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #21396941 ← → #21396967

1 2 4 19 38 76 281,539 563,078 1,126,156 5,349,241 10,698,482 21,396,964

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

21,396,964 10,698,482 5,349,241 16,047,724 8,023,862 4,011,931 12,035,794 6,017,897 18,053,692 9,026,846 4,513,423 13,540,270 6,770,135 20,310,406 10,155,203 30,465,610 15,232,805 45,698,416 22,849,208 11,424,604 5,712,302 2,856,151 8,568,454 4,284,227 12,852,682 6,426,341 19,279,024 9,639,512 4,819,756 2,409,878 1,204,939 3,614,818 1,807,409 5,422,228 2,711,114 1,355,557 4,066,672 2,033,336 1,016,668 508,334 254,167 762,502 381,251 1,143,754 571,877 1,715,632 857,816 428,908 214,454 107,227 321,682 160,841 482,524 241,262 120,631 361,894 180,947 542,842 271,421 814,264

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