3 × 13 × 541

Prime Factor Structure

Factorization String 3 × 13 × 541

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 30,352

Proper Divisor Sum 9,253

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #21089 ← → #21101

1 3 13 39 541 1,623 7,033 21,099

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

21,099 63,298 31,649 94,948 47,474 23,737 71,212 35,606 17,803 53,410 26,705 80,116 40,058 20,029 60,088 30,044 15,022 7,511 22,534 11,267 33,802 16,901 50,704 25,352 12,676 6,338 3,169 9,508 4,754 2,377 7,132 3,566 1,783 5,350 2,675 8,026 4,013 12,040 6,020 3,010 1,505 4,516 2,258 1,129 3,388 1,694 847 2,542 1,271 3,814 1,907 5,722 2,861 8,584 4,292 2,146 1,073 3,220 1,610 805

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