3 × 7² × 3539

Prime Factor Structure

Factorization String 3 × 7^2 × 3539

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 807,120

Proper Divisor Sum 286,887

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #520213 ← → #520241

1 3 7 21 49 147 3,539 10,617 24,773 74,319 173,411 520,233

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

520,233 1,560,700 780,350 390,175 1,170,526 585,263 1,755,790 877,895 2,633,686 1,316,843 3,950,530 1,975,265 5,925,796 2,962,898 1,481,449 4,444,348 2,222,174 1,111,087 3,333,262 1,666,631 4,999,894 2,499,947 7,499,842 3,749,921 11,249,764 5,624,882 2,812,441 8,437,324 4,218,662 2,109,331 6,327,994 3,163,997 9,491,992 4,745,996 2,372,998 1,186,499 3,559,498 1,779,749 5,339,248 2,669,624 1,334,812 667,406 333,703 1,001,110 500,555 1,501,666 750,833 2,252,500 1,126,250 563,125 1,689,376 844,688 422,344 211,172 105,586 52,793 158,380 79,190 39,595 118,786

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