21395821

Prime Factor Structure

Factorization String 21395821

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 21,395,822

Proper Divisor Sum 1

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #21395791 ← → #21395831

1 21,395,821

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

21,395,821 64,187,464 32,093,732 16,046,866 8,023,433 24,070,300 12,035,150 6,017,575 18,052,726 9,026,363 27,079,090 13,539,545 40,618,636 20,309,318 10,154,659 30,463,978 15,231,989 45,695,968 22,847,984 11,423,992 5,711,996 2,855,998 1,427,999 4,283,998 2,141,999 6,425,998 3,212,999 9,638,998 4,819,499 14,458,498 7,229,249 21,687,748 10,843,874 5,421,937 16,265,812 8,132,906 4,066,453 12,199,360 6,099,680 3,049,840 1,524,920 762,460 381,230 190,615 571,846 285,923 857,770 428,885 1,286,656 643,328 321,664 160,832 80,416 40,208 20,104 10,052 5,026 2,513 7,540 3,770

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