2³ × 3 × 13 × 17 × 37 × 109

Prime Factor Structure

Factorization String 2^3 × 3 × 13 × 17 × 37 × 109

Distinct Prime Factors 6

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 128

Divisor Sum (σ) 63,201,600

Proper Divisor Sum 41,810,568

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #21391021 ← → #21391033

1 2 3 4 6 8 12 13 17 24 26 34 37 39 51 52 68 74 78 102 104 109 111 136 148 156 204 218 221 222 296 312 327 408 436 442 444 481 629 654 663 872 884 888 962 1,258 1,308 1,326 1,417 1,443 1,768 1,853 1,887 1,924 2,516 2,616 2,652 2,834 2,886 3,706

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

21,391,032 10,695,516 5,347,758 2,673,879 8,021,638 4,010,819 12,032,458 6,016,229 18,048,688 9,024,344 4,512,172 2,256,086 1,128,043 3,384,130 1,692,065 5,076,196 2,538,098 1,269,049 3,807,148 1,903,574 951,787 2,855,362 1,427,681 4,283,044 2,141,522 1,070,761 3,212,284 1,606,142 803,071 2,409,214 1,204,607 3,613,822 1,806,911 5,420,734 2,710,367 8,131,102 4,065,551 12,196,654 6,098,327 18,294,982 9,147,491 27,442,474 13,721,237 41,163,712 20,581,856 10,290,928 5,145,464 2,572,732 1,286,366 643,183 1,929,550 964,775 2,894,326 1,447,163 4,341,490 2,170,745 6,512,236 3,256,118 1,628,059 4,884,178

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