3 × 23² × 137

Prime Factor Structure

Factorization String 3 × 23^2 × 137

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 305,256

Proper Divisor Sum 87,837

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #217411 ← → #217421

1 3 23 69 137 411 529 1,587 3,151 9,453 72,473 217,419

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

217,419 652,258 326,129 978,388 489,194 244,597 733,792 366,896 183,448 91,724 45,862 22,931 68,794 34,397 103,192 51,596 25,798 12,899 38,698 19,349 58,048 29,024 14,512 7,256 3,628 1,814 907 2,722 1,361 4,084 2,042 1,021 3,064 1,532 766 383 1,150 575 1,726 863 2,590 1,295 3,886 1,943 5,830 2,915 8,746 4,373 13,120 6,560 3,280 1,640 820 410 205 616 308 154 77 232

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