19 × 71 × 101 × 157

Prime Factor Structure

Factorization String 19 × 71 × 101 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 23,207,040

Proper Divisor Sum 1,815,947

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #21391091 ← → #21391129

1 19 71 101 157 1,349 1,919 2,983 7,171 11,147 15,857 136,249 211,793 301,283 1,125,847 21,391,093

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

21,391,093 64,173,280 32,086,640 16,043,320 8,021,660 4,010,830 2,005,415 6,016,246 3,008,123 9,024,370 4,512,185 13,536,556 6,768,278 3,384,139 10,152,418 5,076,209 15,228,628 7,614,314 3,807,157 11,421,472 5,710,736 2,855,368 1,427,684 713,842 356,921 1,070,764 535,382 267,691 803,074 401,537 1,204,612 602,306 301,153 903,460 451,730 225,865 677,596 338,798 169,399 508,198 254,099 762,298 381,149 1,143,448 571,724 285,862 142,931 428,794 214,397 643,192 321,596 160,798 80,399 241,198 120,599 361,798 180,899 542,698 271,349 814,048

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