3 × 7² × 136811

Prime Factor Structure

Factorization String 3 × 7^2 × 136811

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 31,193,136

Proper Divisor Sum 11,081,919

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #20111213 ← → #20111243

1 3 7 21 49 147 136,811 410,433 957,677 2,873,031 6,703,739 20,111,217

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

20,111,217 60,333,652 30,166,826 15,083,413 45,250,240 22,625,120 11,312,560 5,656,280 2,828,140 1,414,070 707,035 2,121,106 1,060,553 3,181,660 1,590,830 795,415 2,386,246 1,193,123 3,579,370 1,789,685 5,369,056 2,684,528 1,342,264 671,132 335,566 167,783 503,350 251,675 755,026 377,513 1,132,540 566,270 283,135 849,406 424,703 1,274,110 637,055 1,911,166 955,583 2,866,750 1,433,375 4,300,126 2,150,063 6,450,190 3,225,095 9,675,286 4,837,643 14,512,930 7,256,465 21,769,396 10,884,698 5,442,349 16,327,048 8,163,524 4,081,762 2,040,881 6,122,644 3,061,322 1,530,661 4,591,984

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