7 × 11 × 19 × 13781

Prime Factor Structure

Factorization String 7 × 11 × 19 × 13781

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 26,461,440

Proper Divisor Sum 6,299,837

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #20161601 ← → #20161607

1 7 11 19 77 133 209 1,463 13,781 96,467 151,591 261,839 1,061,137 1,832,873 2,880,229 20,161,603

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

20,161,603 60,484,810 30,242,405 90,727,216 45,363,608 22,681,804 11,340,902 5,670,451 17,011,354 8,505,677 25,517,032 12,758,516 6,379,258 3,189,629 9,568,888 4,784,444 2,392,222 1,196,111 3,588,334 1,794,167 5,382,502 2,691,251 8,073,754 4,036,877 12,110,632 6,055,316 3,027,658 1,513,829 4,541,488 2,270,744 1,135,372 567,686 283,843 851,530 425,765 1,277,296 638,648 319,324 159,662 79,831 239,494 119,747 359,242 179,621 538,864 269,432 134,716 67,358 33,679 101,038 50,519 151,558 75,779 227,338 113,669 341,008 170,504 85,252 42,626 21,313

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