2 × 3² × 7 × 5081

Prime Factor Structure

Factorization String 2 × 3^2 × 7 × 5081

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,585,584

Proper Divisor Sum 945,378

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #640193 ← → #640219

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

640,206 320,103 960,310 480,155 1,440,466 720,233 2,160,700 1,080,350 540,175 1,620,526 810,263 2,430,790 1,215,395 3,646,186 1,823,093 5,469,280 2,734,640 1,367,320 683,660 341,830 170,915 512,746 256,373 769,120 384,560 192,280 96,140 48,070 24,035 72,106 36,053 108,160 54,080 27,040 13,520 6,760 3,380 1,690 845 2,536 1,268 634 317 952 476 238 119 358 179 538 269 808 404 202 101 304 152 76 38 19

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