3 × 5 × 7 × 12781

Prime Factor Structure

Factorization String 3 × 5 × 7 × 12781

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,454,144

Proper Divisor Sum 1,112,139

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #1342001 ← → #1342007

1 3 5 7 15 21 35 105 12,781 38,343 63,905 89,467 191,715 268,401 447,335 1,342,005

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

1,342,005 4,026,016 2,013,008 1,006,504 503,252 251,626 125,813 377,440 188,720 94,360 47,180 23,590 11,795 35,386 17,693 53,080 26,540 13,270 6,635 19,906 9,953 29,860 14,930 7,465 22,396 11,198 5,599 16,798 8,399 25,198 12,599 37,798 18,899 56,698 28,349 85,048 42,524 21,262 10,631 31,894 15,947 47,842 23,921 71,764 35,882 17,941 53,824 26,912 13,456 6,728 3,364 1,682 841 2,524 1,262 631 1,894 947 2,842 1,421

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