3 × 7 × 11 × 17 × 163

Prime Factor Structure

Factorization String 3 × 7 × 11 × 17 × 163

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 1,133,568

Proper Divisor Sum 493,467

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #640099 ← → #640109

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

640,101 1,920,304 960,152 480,076 240,038 120,019 360,058 180,029 540,088 270,044 135,022 67,511 202,534 101,267 303,802 151,901 455,704 227,852 113,926 56,963 170,890 85,445 256,336 128,168 64,084 32,042 16,021 48,064 24,032 12,016 6,008 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.