331 × 1997

Prime Factor Structure

Factorization String 331 × 1997

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 663,336

Proper Divisor Sum 2,329

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #660983 ← → #661009

1 331 1,997 661,007

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

661,007 1,983,022 991,511 2,974,534 1,487,267 4,461,802 2,230,901 6,692,704 3,346,352 1,673,176 836,588 418,294 209,147 627,442 313,721 941,164 470,582 235,291 705,874 352,937 1,058,812 529,406 264,703 794,110 397,055 1,191,166 595,583 1,786,750 893,375 2,680,126 1,340,063 4,020,190 2,010,095 6,030,286 3,015,143 9,045,430 4,522,715 13,568,146 6,784,073 20,352,220 10,176,110 5,088,055 15,264,166 7,632,083 22,896,250 11,448,125 34,344,376 17,172,188 8,586,094 4,293,047 12,879,142 6,439,571 19,318,714 9,659,357 28,978,072 14,489,036 7,244,518 3,622,259 10,866,778 5,433,389

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