5 × 13 × 257 × 523

Prime Factor Structure

Factorization String 5 × 13 × 257 × 523

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 11,356,128

Proper Divisor Sum 2,619,413

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #8736703 ← → #8736719

1 5 13 65 257 523 1,285 2,615 3,341 6,799 16,705 33,995 134,411 672,055 1,747,343 8,736,715

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

8,736,715 26,210,146 13,105,073 39,315,220 19,657,610 9,828,805 29,486,416 14,743,208 7,371,604 3,685,802 1,842,901 5,528,704 2,764,352 1,382,176 691,088 345,544 172,772 86,386 43,193 129,580 64,790 32,395 97,186 48,593 145,780 72,890 36,445 109,336 54,668 27,334 13,667 41,002 20,501 61,504 30,752 15,376 7,688 3,844 1,922 961 2,884 1,442 721 2,164 1,082 541 1,624 812 406 203 610 305 916 458 229 688 344 172 86 43

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