21688397

Prime Factor Structure

Factorization String 21688397

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 21,688,398

Proper Divisor Sum 1

Digit Sum / Digital Root 44 (Root: 8)

Adjacent Primes #21688393 ← → #21688409

1 21,688,397

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

21,688,397 65,065,192 32,532,596 16,266,298 8,133,149 24,399,448 12,199,724 6,099,862 3,049,931 9,149,794 4,574,897 13,724,692 6,862,346 3,431,173 10,293,520 5,146,760 2,573,380 1,286,690 643,345 1,930,036 965,018 482,509 1,447,528 723,764 361,882 180,941 542,824 271,412 135,706 67,853 203,560 101,780 50,890 25,445 76,336 38,168 19,084 9,542 4,771 14,314 7,157 21,472 10,736 5,368 2,684 1,342 671 2,014 1,007 3,022 1,511 4,534 2,267 6,802 3,401 10,204 5,102 2,551 7,654 3,827

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