2² × 160091

Prime Factor Structure

Factorization String 2^2 × 160091

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 1,120,644

Proper Divisor Sum 480,280

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #640363 ← → #640369

1 2 4 160,091 320,182 640,364

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

640,364 320,182 160,091 480,274 240,137 720,412 360,206 180,103 540,310 270,155 810,466 405,233 1,215,700 607,850 303,925 911,776 455,888 227,944 113,972 56,986 28,493 85,480 42,740 21,370 10,685 32,056 16,028 8,014 4,007 12,022 6,011 18,034 9,017 27,052 13,526 6,763 20,290 10,145 30,436 15,218 7,609 22,828 11,414 5,707 17,122 8,561 25,684 12,842 6,421 19,264 9,632 4,816 2,408 1,204 602 301 904 452 226 113

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