3 × 7 × 19 × 53623

Prime Factor Structure

Factorization String 3 × 7 × 19 × 53623

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 34,319,360

Proper Divisor Sum 12,923,783

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #21395551 ← → #21395587

1 3 7 19 21 57 133 399 53,623 160,869 375,361 1,018,837 1,126,083 3,056,511 7,131,859 21,395,577

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

21,395,577 64,186,732 32,093,366 16,046,683 48,140,050 24,070,025 72,210,076 36,105,038 18,052,519 54,157,558 27,078,779 81,236,338 40,618,169 121,854,508 60,927,254 30,463,627 91,390,882 45,695,441 137,086,324 68,543,162 34,271,581 102,814,744 51,407,372 25,703,686 12,851,843 38,555,530 19,277,765 57,833,296 28,916,648 14,458,324 7,229,162 3,614,581 10,843,744 5,421,872 2,710,936 1,355,468 677,734 338,867 1,016,602 508,301 1,524,904 762,452 381,226 190,613 571,840 285,920 142,960 71,480 35,740 17,870 8,935 26,806 13,403 40,210 20,105 60,316 30,158 15,079 45,238 22,619

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