3 × 37 × 263 × 691

Prime Factor Structure

Factorization String 3 × 37 × 263 × 691

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 27,768,576

Proper Divisor Sum 7,596,213

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #20172359 ← → #20172377

1 3 37 111 263 691 789 2,073 9,731 25,567 29,193 76,701 181,733 545,199 6,724,121 20,172,363

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

20,172,363 60,517,090 30,258,545 90,775,636 45,387,818 22,693,909 68,081,728 34,040,864 17,020,432 8,510,216 4,255,108 2,127,554 1,063,777 3,191,332 1,595,666 797,833 2,393,500 1,196,750 598,375 1,795,126 897,563 2,692,690 1,346,345 4,039,036 2,019,518 1,009,759 3,029,278 1,514,639 4,543,918 2,271,959 6,815,878 3,407,939 10,223,818 5,111,909 15,335,728 7,667,864 3,833,932 1,916,966 958,483 2,875,450 1,437,725 4,313,176 2,156,588 1,078,294 539,147 1,617,442 808,721 2,426,164 1,213,082 606,541 1,819,624 909,812 454,906 227,453 682,360 341,180 170,590 85,295 255,886 127,943

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