2 × 7 × 31 × 643

Prime Factor Structure

Factorization String 2 × 7 × 31 × 643

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 494,592

Proper Divisor Sum 215,530

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #279047 ← → #279073

1 2 7 14 31 62 217 434 643 1,286 4,501 9,002 19,933 39,866 139,531 279,062

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

279,062 139,531 418,594 209,297 627,892 313,946 156,973 470,920 235,460 117,730 58,865 176,596 88,298 44,149 132,448 66,224 33,112 16,556 8,278 4,139 12,418 6,209 18,628 9,314 4,657 13,972 6,986 3,493 10,480 5,240 2,620 1,310 655 1,966 983 2,950 1,475 4,426 2,213 6,640 3,320 1,660 830 415 1,246 623 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777

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