3 × 7² × 1453

Prime Factor Structure

Factorization String 3 × 7^2 × 1453

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 331,512

Proper Divisor Sum 117,921

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #213589 ← → #213599

1 3 7 21 49 147 1,453 4,359 10,171 30,513 71,197 213,591

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

213,591 640,774 320,387 961,162 480,581 1,441,744 720,872 360,436 180,218 90,109 270,328 135,164 67,582 33,791 101,374 50,687 152,062 76,031 228,094 114,047 342,142 171,071 513,214 256,607 769,822 384,911 1,154,734 577,367 1,732,102 866,051 2,598,154 1,299,077 3,897,232 1,948,616 974,308 487,154 243,577 730,732 365,366 182,683 548,050 274,025 822,076 411,038 205,519 616,558 308,279 924,838 462,419 1,387,258 693,629 2,080,888 1,040,444 520,222 260,111 780,334 390,167 1,170,502 585,251 1,755,754

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