2² × 3⁴ × 5 × 397

Prime Factor Structure

Factorization String 2^2 × 3^4 × 5 × 397

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 60

Divisor Sum (σ) 2,022,636

Proper Divisor Sum 1,379,496

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #643129 ← → #643183

1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 270 324 397 405 540 794 810 1,191 1,588 1,620 1,985 2,382 3,573 3,970 4,764 5,955 7,146 7,940 10,719 11,910 14,292 17,865 21,438 23,820 32,157 35,730 42,876 53,595 64,314 71,460 107,190 128,628 160,785 214,380 321,570 643,140

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

643,140 321,570 160,785 482,356 241,178 120,589 361,768 180,884 90,442 45,221 135,664 67,832 33,916 16,958 8,479 25,438 12,719 38,158 19,079 57,238 28,619 85,858 42,929 128,788 64,394 32,197 96,592 48,296 24,148 12,074 6,037 18,112 9,056 4,528 2,264 1,132 566 283 850 425 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734 1,367 4,102

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