2² × 5 × 7 × 17 × 269

Prime Factor Structure

Factorization String 2^2 × 5 × 7 × 17 × 269

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,632,960

Proper Divisor Sum 992,740

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #640219 ← → #640223

1 2 4 5 7 10 14 17 20 28 34 35 68 70 85 119 140 170 238 269 340 476 538 595 1,076 1,190 1,345 1,883 2,380 2,690 3,766 4,573 5,380 7,532 9,146 9,415 18,292 18,830 22,865 32,011 37,660 45,730 64,022 91,460 128,044 160,055 320,110 640,220

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

640,220 320,110 160,055 480,166 240,083 720,250 360,125 1,080,376 540,188 270,094 135,047 405,142 202,571 607,714 303,857 911,572 455,786 227,893 683,680 341,840 170,920 85,460 42,730 21,365 64,096 32,048 16,024 8,012 4,006 2,003 6,010 3,005 9,016 4,508 2,254 1,127 3,382 1,691 5,074 2,537 7,612 3,806 1,903 5,710 2,855 8,566 4,283 12,850 6,425 19,276 9,638 4,819 14,458 7,229 21,688 10,844 5,422 2,711 8,134 4,067

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