2 × 3 × 19 × 43 × 131

Prime Factor Structure

Factorization String 2 × 3 × 19 × 43 × 131

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 1,393,920

Proper Divisor Sum 751,758

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #642157 ← → #642163

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

642,162 321,081 963,244 481,622 240,811 722,434 361,217 1,083,652 541,826 270,913 812,740 406,370 203,185 609,556 304,778 152,389 457,168 228,584 114,292 57,146 28,573 85,720 42,860 21,430 10,715 32,146 16,073 48,220 24,110 12,055 36,166 18,083 54,250 27,125 81,376 40,688 20,344 10,172 5,086 2,543 7,630 3,815 11,446 5,723 17,170 8,585 25,756 12,878 6,439 19,318 9,659 28,978 14,489 43,468 21,734 10,867 32,602 16,301 48,904 24,452

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