13 × 17 × 3121

Prime Factor Structure

Factorization String 13 × 17 × 3121

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 786,744

Proper Divisor Sum 97,003

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #689723 ← → #689761

1 13 17 221 3,121 40,573 53,057 689,741

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

689,741 2,069,224 1,034,612 517,306 258,653 775,960 387,980 193,990 96,995 290,986 145,493 436,480 218,240 109,120 54,560 27,280 13,640 6,820 3,410 1,705 5,116 2,558 1,279 3,838 1,919 5,758 2,879 8,638 4,319 12,958 6,479 19,438 9,719 29,158 14,579 43,738 21,869 65,608 32,804 16,402 8,201 24,604 12,302 6,151 18,454 9,227 27,682 13,841 41,524 20,762 10,381 31,144 15,572 7,786 3,893 11,680 5,840 2,920 1,460 730

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