2 × 320239

Prime Factor Structure

Factorization String 2 × 320239

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 960,720

Proper Divisor Sum 320,242

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #640477 ← → #640483

1 2 320,239 640,478

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

640,478 320,239 960,718 480,359 1,441,078 720,539 2,161,618 1,080,809 3,242,428 1,621,214 810,607 2,431,822 1,215,911 3,647,734 1,823,867 5,471,602 2,735,801 8,207,404 4,103,702 2,051,851 6,155,554 3,077,777 9,233,332 4,616,666 2,308,333 6,925,000 3,462,500 1,731,250 865,625 2,596,876 1,298,438 649,219 1,947,658 973,829 2,921,488 1,460,744 730,372 365,186 182,593 547,780 273,890 136,945 410,836 205,418 102,709 308,128 154,064 77,032 38,516 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.