2³ × 3 × 26681

Prime Factor Structure

Factorization String 2^3 × 3 × 26681

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,600,920

Proper Divisor Sum 960,576

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #640333 ← → #640363

1 2 3 4 6 8 12 24 26,681 53,362 80,043 106,724 160,086 213,448 320,172 640,344

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

640,344 320,172 160,086 80,043 240,130 120,065 360,196 180,098 90,049 270,148 135,074 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.