2 × 3² × 5² × 1423

Prime Factor Structure

Factorization String 2 × 3^2 × 5^2 × 1423

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 1,721,616

Proper Divisor Sum 1,081,266

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #640333 ← → #640363

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

640,350 320,175 960,526 480,263 1,440,790 720,395 2,161,186 1,080,593 3,241,780 1,620,890 810,445 2,431,336 1,215,668 607,834 303,917 911,752 455,876 227,938 113,969 341,908 170,954 85,477 256,432 128,216 64,108 32,054 16,027 48,082 24,041 72,124 36,062 18,031 54,094 27,047 81,142 40,571 121,714 60,857 182,572 91,286 45,643 136,930 68,465 205,396 102,698 51,349 154,048 77,024 38,512 19,256 9,628 4,814 2,407 7,222 3,611 10,834 5,417 16,252 8,126 4,063

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