3 × 19 × 31 × 12107

Prime Factor Structure

Factorization String 3 × 19 × 31 × 12107

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 30,996,480

Proper Divisor Sum 9,603,411

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #21393061 ← → #21393077

1 3 19 31 57 93 589 1,767 12,107 36,321 230,033 375,317 690,099 1,125,951 7,131,023 21,393,069

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

21,393,069 64,179,208 32,089,604 16,044,802 8,022,401 24,067,204 12,033,602 6,016,801 18,050,404 9,025,202 4,512,601 13,537,804 6,768,902 3,384,451 10,153,354 5,076,677 15,230,032 7,615,016 3,807,508 1,903,754 951,877 2,855,632 1,427,816 713,908 356,954 178,477 535,432 267,716 133,858 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.