3 × 13 × 15913

Prime Factor Structure

Factorization String 3 × 13 × 15913

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 891,184

Proper Divisor Sum 270,577

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #620603 ← → #620623

1 3 13 39 15,913 47,739 206,869 620,607

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

620,607 1,861,822 930,911 2,792,734 1,396,367 4,189,102 2,094,551 6,283,654 3,141,827 9,425,482 4,712,741 14,138,224 7,069,112 3,534,556 1,767,278 883,639 2,650,918 1,325,459 3,976,378 1,988,189 5,964,568 2,982,284 1,491,142 745,571 2,236,714 1,118,357 3,355,072 1,677,536 838,768 419,384 209,692 104,846 52,423 157,270 78,635 235,906 117,953 353,860 176,930 88,465 265,396 132,698 66,349 199,048 99,524 49,762 24,881 74,644 37,322 18,661 55,984 27,992 13,996 6,998 3,499 10,498 5,249 15,748 7,874 3,937

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