13 × 21397

Prime Factor Structure

Factorization String 13 × 21397

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 299,572

Proper Divisor Sum 21,411

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #278149 ← → #278177

1 13 21,397 278,161

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

278,161 834,484 417,242 208,621 625,864 312,932 156,466 78,233 234,700 117,350 58,675 176,026 88,013 264,040 132,020 66,010 33,005 99,016 49,508 24,754 12,377 37,132 18,566 9,283 27,850 13,925 41,776 20,888 10,444 5,222 2,611 7,834 3,917 11,752 5,876 2,938 1,469 4,408 2,204 1,102 551 1,654 827 2,482 1,241 3,724 1,862 931 2,794 1,397 4,192 2,096 1,048 524 262 131 394 197 592 296

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