3 × 43 × 165857

Prime Factor Structure

Factorization String 3 × 43 × 165857

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 29,191,008

Proper Divisor Sum 7,795,455

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #21395551 ← → #21395587

1 3 43 129 165,857 497,571 7,131,851 21,395,553

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

21,395,553 64,186,660 32,093,330 16,046,665 48,139,996 24,069,998 12,034,999 36,104,998 18,052,499 54,157,498 27,078,749 81,236,248 40,618,124 20,309,062 10,154,531 30,463,594 15,231,797 45,695,392 22,847,696 11,423,848 5,711,924 2,855,962 1,427,981 4,283,944 2,141,972 1,070,986 535,493 1,606,480 803,240 401,620 200,810 100,405 301,216 150,608 75,304 37,652 18,826 9,413 28,240 14,120 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.