5 × 7 × 47 × 389

Prime Factor Structure

Factorization String 5 × 7 × 47 × 389

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 898,560

Proper Divisor Sum 258,655

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #639857 ← → #639907

1 5 7 35 47 235 329 389 1,645 1,945 2,723 13,615 18,283 91,415 127,981 639,905

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

639,905 1,919,716 959,858 479,929 1,439,788 719,894 359,947 1,079,842 539,921 1,619,764 809,882 404,941 1,214,824 607,412 303,706 151,853 455,560 227,780 113,890 56,945 170,836 85,418 42,709 128,128 64,064 32,032 16,016 8,008 4,004 2,002 1,001 3,004 1,502 751 2,254 1,127 3,382 1,691 5,074 2,537 7,612 3,806 1,903 5,710 2,855 8,566 4,283 12,850 6,425 19,276 9,638 4,819 14,458 7,229 21,688 10,844 5,422 2,711 8,134 4,067

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