2² × 3² × 643 × 883

Prime Factor Structure

Factorization String 2^2 × 3^2 × 643 × 883

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 51,805,936

Proper Divisor Sum 31,366,252

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #20439647 ← → #20439691

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

20,439,684 10,219,842 5,109,921 15,329,764 7,664,882 3,832,441 11,497,324 5,748,662 2,874,331 8,622,994 4,311,497 12,934,492 6,467,246 3,233,623 9,700,870 4,850,435 14,551,306 7,275,653 21,826,960 10,913,480 5,456,740 2,728,370 1,364,185 4,092,556 2,046,278 1,023,139 3,069,418 1,534,709 4,604,128 2,302,064 1,151,032 575,516 287,758 143,879 431,638 215,819 647,458 323,729 971,188 485,594 242,797 728,392 364,196 182,098 91,049 273,148 136,574 68,287 204,862 102,431 307,294 153,647 460,942 230,471 691,414 345,707 1,037,122 518,561 1,555,684 777,842

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