2 × 13 × 811

Prime Factor Structure

Factorization String 2 × 13 × 811

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 34,104

Proper Divisor Sum 13,018

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #21067 ← → #21089

1 2 13 26 811 1,622 10,543 21,086

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

21,086 10,543 31,630 15,815 47,446 23,723 71,170 35,585 106,756 53,378 26,689 80,068 40,034 20,017 60,052 30,026 15,013 45,040 22,520 11,260 5,630 2,815 8,446 4,223 12,670 6,335 19,006 9,503 28,510 14,255 42,766 21,383 64,150 32,075 96,226 48,113 144,340 72,170 36,085 108,256 54,128 27,064 13,532 6,766 3,383 10,150 5,075 15,226 7,613 22,840 11,420 5,710 2,855 8,566 4,283 12,850 6,425 19,276 9,638 4,819

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