640267

Prime Factor Structure

Factorization String 640267

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 640,268

Proper Divisor Sum 1

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #640261 ← → #640279

1 640,267

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

640,267 1,920,802 960,401 2,881,204 1,440,602 720,301 2,160,904 1,080,452 540,226 270,113 810,340 405,170 202,585 607,756 303,878 151,939 455,818 227,909 683,728 341,864 170,932 85,466 42,733 128,200 64,100 32,050 16,025 48,076 24,038 12,019 36,058 18,029 54,088 27,044 13,522 6,761 20,284 10,142 5,071 15,214 7,607 22,822 11,411 34,234 17,117 51,352 25,676 12,838 6,419 19,258 9,629 28,888 14,444 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.