3 × 17 × 12553

Prime Factor Structure

Factorization String 3 × 17 × 12553

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 903,888

Proper Divisor Sum 263,685

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #640193 ← → #640219

1 3 17 51 12,553 37,659 213,401 640,203

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

640,203 1,920,610 960,305 2,880,916 1,440,458 720,229 2,160,688 1,080,344 540,172 270,086 135,043 405,130 202,565 607,696 303,848 151,924 75,962 37,981 113,944 56,972 28,486 14,243 42,730 21,365 64,096 32,048 16,024 8,012 4,006 2,003 6,010 3,005 9,016 4,508 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.