13 × 643

Prime Factor Structure

Factorization String 13 × 643

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 9,016

Proper Divisor Sum 657

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #8353 ← → #8363

1 13 643 8,359

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

8,359 25,078 12,539 37,618 18,809 56,428 28,214 14,107 42,322 21,161 63,484 31,742 15,871 47,614 23,807 71,422 35,711 107,134 53,567 160,702 80,351 241,054 120,527 361,582 180,791 542,374 271,187 813,562 406,781 1,220,344 610,172 305,086 152,543 457,630 228,815 686,446 343,223 1,029,670 514,835 1,544,506 772,253 2,316,760 1,158,380 579,190 289,595 868,786 434,393 1,303,180 651,590 325,795 977,386 488,693 1,466,080 733,040 366,520 183,260 91,630 45,815 137,446 68,723

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