3 × 21391

Prime Factor Structure

Factorization String 3 × 21391

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 85,568

Proper Divisor Sum 21,395

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #64171 ← → #64187

1 3 21,391 64,173

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

64,173 192,520 96,260 48,130 24,065 72,196 36,098 18,049 54,148 27,074 13,537 40,612 20,306 10,153 30,460 15,230 7,615 22,846 11,423 34,270 17,135 51,406 25,703 77,110 38,555 115,666 57,833 173,500 86,750 43,375 130,126 65,063 195,190 97,595 292,786 146,393 439,180 219,590 109,795 329,386 164,693 494,080 247,040 123,520 61,760 30,880 15,440 7,720 3,860 1,930 965 2,896 1,448 724 362 181 544 272 136 68

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