2² × 13 × 547 × 751

Prime Factor Structure

Factorization String 2^2 × 13 × 547 × 751

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 40,385,408

Proper Divisor Sum 19,023,964

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #21361427 ← → #21361447

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

21,361,444 10,680,722 5,340,361 16,021,084 8,010,542 4,005,271 12,015,814 6,007,907 18,023,722 9,011,861 27,035,584 13,517,792 6,758,896 3,379,448 1,689,724 844,862 422,431 1,267,294 633,647 1,900,942 950,471 2,851,414 1,425,707 4,277,122 2,138,561 6,415,684 3,207,842 1,603,921 4,811,764 2,405,882 1,202,941 3,608,824 1,804,412 902,206 451,103 1,353,310 676,655 2,029,966 1,014,983 3,044,950 1,522,475 4,567,426 2,283,713 6,851,140 3,425,570 1,712,785 5,138,356 2,569,178 1,284,589 3,853,768 1,926,884 963,442 481,721 1,445,164 722,582 361,291 1,083,874 541,937 1,625,812 812,906

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