2² × 160087

Prime Factor Structure

Factorization String 2^2 × 160087

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 1,120,616

Proper Divisor Sum 480,268

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #640333 ← → #640363

1 2 4 160,087 320,174 640,348

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

640,348 320,174 160,087 480,262 240,131 720,394 360,197 1,080,592 540,296 270,148 135,074 67,537 202,612 101,306 50,653 151,960 75,980 37,990 18,995 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.