13 × 40013

Prime Factor Structure

Factorization String 13 × 40013

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 560,196

Proper Divisor Sum 40,027

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #520151 ← → #520193

1 13 40,013 520,169

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

520,169 1,560,508 780,254 390,127 1,170,382 585,191 1,755,574 877,787 2,633,362 1,316,681 3,950,044 1,975,022 987,511 2,962,534 1,481,267 4,443,802 2,221,901 6,665,704 3,332,852 1,666,426 833,213 2,499,640 1,249,820 624,910 312,455 937,366 468,683 1,406,050 703,025 2,109,076 1,054,538 527,269 1,581,808 790,904 395,452 197,726 98,863 296,590 148,295 444,886 222,443 667,330 333,665 1,000,996 500,498 250,249 750,748 375,374 187,687 563,062 281,531 844,594 422,297 1,266,892 633,446 316,723 950,170 475,085 1,425,256 712,628

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