3 × 7 × 8191

Prime Factor Structure

Factorization String 3 × 7 × 8191

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 262,144

Proper Divisor Sum 90,133

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #172009 ← → #172021

1 3 7 21 8,191 24,573 57,337 172,011

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

172,011 516,034 258,017 774,052 387,026 193,513 580,540 290,270 145,135 435,406 217,703 653,110 326,555 979,666 489,833 1,469,500 734,750 367,375 1,102,126 551,063 1,653,190 826,595 2,479,786 1,239,893 3,719,680 1,859,840 929,920 464,960 232,480 116,240 58,120 29,060 14,530 7,265 21,796 10,898 5,449 16,348 8,174 4,087 12,262 6,131 18,394 9,197 27,592 13,796 6,898 3,449 10,348 5,174 2,587 7,762 3,881 11,644 5,822 2,911 8,734 4,367 13,102 6,551

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