2⁴ × 5² × 1601

Prime Factor Structure

Factorization String 2^4 × 5^2 × 1601

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 30

Divisor Sum (σ) 1,539,522

Proper Divisor Sum 899,122

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #640369 ← → #640411

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

640,400 320,200 160,100 80,050 40,025 120,076 60,038 30,019 90,058 45,029 135,088 67,544 33,772 16,886 8,443 25,330 12,665 37,996 18,998 9,499 28,498 14,249 42,748 21,374 10,687 32,062 16,031 48,094 24,047 72,142 36,071 108,214 54,107 162,322 81,161 243,484 121,742 60,871 182,614 91,307 273,922 136,961 410,884 205,442 102,721 308,164 154,082 77,041 231,124 115,562 57,781 173,344 86,672 43,336 21,668 10,834 5,417 16,252 8,126 4,063

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