13 × 139 × 11839

Prime Factor Structure

Factorization String 13 × 139 × 11839

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 23,206,400

Proper Divisor Sum 1,813,327

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #21393061 ← → #21393077

1 13 139 1,807 11,839 153,907 1,645,621 21,393,073

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

21,393,073 64,179,220 32,089,610 16,044,805 48,134,416 24,067,208 12,033,604 6,016,802 3,008,401 9,025,204 4,512,602 2,256,301 6,768,904 3,384,452 1,692,226 846,113 2,538,340 1,269,170 634,585 1,903,756 951,878 475,939 1,427,818 713,909 2,141,728 1,070,864 535,432 267,716 133,858 66,929 200,788 100,394 50,197 150,592 75,296 37,648 18,824 9,412 4,706 2,353 7,060 3,530 1,765 5,296 2,648 1,324 662 331 994 497 1,492 746 373 1,120 560 280 140 70 35 106

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