3² × 2221

Prime Factor Structure

Factorization String 3^2 × 2221

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 28,886

Proper Divisor Sum 8,897

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #19979 ← → #19991

1 3 9 2,221 6,663 19,989

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

19,989 59,968 29,984 14,992 7,496 3,748 1,874 937 2,812 1,406 703 2,110 1,055 3,166 1,583 4,750 2,375 7,126 3,563 10,690 5,345 16,036 8,018 4,009 12,028 6,014 3,007 9,022 4,511 13,534 6,767 20,302 10,151 30,454 15,227 45,682 22,841 68,524 34,262 17,131 51,394 25,697 77,092 38,546 19,273 57,820 28,910 14,455 43,366 21,683 65,050 32,525 97,576 48,788 24,394 12,197 36,592 18,296 9,148 4,574

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