2 × 7 × 149 × 307

Prime Factor Structure

Factorization String 2 × 7 × 149 × 307

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,108,800

Proper Divisor Sum 468,398

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #640369 ← → #640411

1 2 7 14 149 298 307 614 1,043 2,086 2,149 4,298 45,743 91,486 320,201 640,402

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

640,402 320,201 960,604 480,302 240,151 720,454 360,227 1,080,682 540,341 1,621,024 810,512 405,256 202,628 101,314 50,657 151,972 75,986 37,993 113,980 56,990 28,495 85,486 42,743 128,230 64,115 192,346 96,173 288,520 144,260 72,130 36,065 108,196 54,098 27,049 81,148 40,574 20,287 60,862 30,431 91,294 45,647 136,942 68,471 205,414 102,707 308,122 154,061 462,184 231,092 115,546 57,773 173,320 86,660 43,330 21,665 64,996 32,498 16,249 48,748 24,374

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