3² × 11 × 137

Prime Factor Structure

Factorization String 3^2 × 11 × 137

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 21,528

Proper Divisor Sum 7,965

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #13553 ← → #13567

1 3 9 11 33 99 137 411 1,233 1,507 4,521 13,563

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

13,563 40,690 20,345 61,036 30,518 15,259 45,778 22,889 68,668 34,334 17,167 51,502 25,751 77,254 38,627 115,882 57,941 173,824 86,912 43,456 21,728 10,864 5,432 2,716 1,358 679 2,038 1,019 3,058 1,529 4,588 2,294 1,147 3,442 1,721 5,164 2,582 1,291 3,874 1,937 5,812 2,906 1,453 4,360 2,180 1,090 545 1,636 818 409 1,228 614 307 922 461 1,384 692 346 173 520

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