2 × 3³ × 29 × 409

Prime Factor Structure

Factorization String 2 × 3^3 × 29 × 409

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 1,476,000

Proper Divisor Sum 835,506

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #640483 ← → #640499

1 2 3 6 9 18 27 29 54 58 87 174 261 409 522 783 818 1,227 1,566 2,454 3,681 7,362 11,043 11,861 22,086 23,722 35,583 71,166 106,749 213,498 320,247 640,494

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

640,494 320,247 960,742 480,371 1,441,114 720,557 2,161,672 1,080,836 540,418 270,209 810,628 405,314 202,657 607,972 303,986 151,993 455,980 227,990 113,995 341,986 170,993 512,980 256,490 128,245 384,736 192,368 96,184 48,092 24,046 12,023 36,070 18,035 54,106 27,053 81,160 40,580 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.