7² × 19²

Prime Factor Structure

Factorization String 7^2 × 19^2

Distinct Prime Factors 2

Square Status Yes (√17689 = 133)

Abundance Measure Deficient

Analytical Properties

Total Divisors 9

Divisor Sum (σ) 21,717

Proper Divisor Sum 4,028

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #17683 ← → #17707

1 7 19 49 133 361 931 2,527 17,689

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

17,689 53,068 26,534 13,267 39,802 19,901 59,704 29,852 14,926 7,463 22,390 11,195 33,586 16,793 50,380 25,190 12,595 37,786 18,893 56,680 28,340 14,170 7,085 21,256 10,628 5,314 2,657 7,972 3,986 1,993 5,980 2,990 1,495 4,486 2,243 6,730 3,365 10,096 5,048 2,524 1,262 631 1,894 947 2,842 1,421 4,264 2,132 1,066 533 1,600 800 400 200 100 50 25 76 38 19

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