3² × 7² × 199

Prime Factor Structure

Factorization String 3^2 × 7^2 × 199

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 148,200

Proper Divisor Sum 60,441

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #87751 ← → #87767

1 3 7 9 21 49 63 147 199 441 597 1,393 1,791 4,179 9,751 12,537 29,253 87,759

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

87,759 263,278 131,639 394,918 197,459 592,378 296,189 888,568 444,284 222,142 111,071 333,214 166,607 499,822 249,911 749,734 374,867 1,124,602 562,301 1,686,904 843,452 421,726 210,863 632,590 316,295 948,886 474,443 1,423,330 711,665 2,134,996 1,067,498 533,749 1,601,248 800,624 400,312 200,156 100,078 50,039 150,118 75,059 225,178 112,589 337,768 168,884 84,442 42,221 126,664 63,332 31,666 15,833 47,500 23,750 11,875 35,626 17,813 53,440 26,720 13,360 6,680 3,340

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