21391801

Prime Factor Structure

Factorization String 21391801

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 21,391,802

Proper Divisor Sum 1

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #21391793 ← → #21391819

1 21,391,801

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

21,391,801 64,175,404 32,087,702 16,043,851 48,131,554 24,065,777 72,197,332 36,098,666 18,049,333 54,148,000 27,074,000 13,537,000 6,768,500 3,384,250 1,692,125 5,076,376 2,538,188 1,269,094 634,547 1,903,642 951,821 2,855,464 1,427,732 713,866 356,933 1,070,800 535,400 267,700 133,850 66,925 200,776 100,388 50,194 25,097 75,292 37,646 18,823 56,470 28,235 84,706 42,353 127,060 63,530 31,765 95,296 47,648 23,824 11,912 5,956 2,978 1,489 4,468 2,234 1,117 3,352 1,676 838 419 1,258 629

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