3 × 13 × 17681

Prime Factor Structure

Factorization String 3 × 13 × 17681

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 990,192

Proper Divisor Sum 300,633

Digit Sum / Digital Root 42 (Root: 6)

Adjacent Primes #689551 ← → #689561

1 3 13 39 17,681 53,043 229,853 689,559

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

689,559 2,068,678 1,034,339 3,103,018 1,551,509 4,654,528 2,327,264 1,163,632 581,816 290,908 145,454 72,727 218,182 109,091 327,274 163,637 490,912 245,456 122,728 61,364 30,682 15,341 46,024 23,012 11,506 5,753 17,260 8,630 4,315 12,946 6,473 19,420 9,710 4,855 14,566 7,283 21,850 10,925 32,776 16,388 8,194 4,097 12,292 6,146 3,073 9,220 4,610 2,305 6,916 3,458 1,729 5,188 2,594 1,297 3,892 1,946 973 2,920 1,460 730

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