3 × 7 × 71 × 349

Prime Factor Structure

Factorization String 3 × 7 × 71 × 349

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 806,400

Proper Divisor Sum 286,041

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #520357 ← → #520361

1 3 7 21 71 213 349 497 1,047 1,491 2,443 7,329 24,779 74,337 173,453 520,359

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

520,359 1,561,078 780,539 2,341,618 1,170,809 3,512,428 1,756,214 878,107 2,634,322 1,317,161 3,951,484 1,975,742 987,871 2,963,614 1,481,807 4,445,422 2,222,711 6,668,134 3,334,067 10,002,202 5,001,101 15,003,304 7,501,652 3,750,826 1,875,413 5,626,240 2,813,120 1,406,560 703,280 351,640 175,820 87,910 43,955 131,866 65,933 197,800 98,900 49,450 24,725 74,176 37,088 18,544 9,272 4,636 2,318 1,159 3,478 1,739 5,218 2,609 7,828 3,914 1,957 5,872 2,936 1,468 734 367 1,102 551

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