3 × 7 × 17 × 1091

Prime Factor Structure

Factorization String 3 × 7 × 17 × 1091

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 628,992

Proper Divisor Sum 239,505

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #389483 ← → #389507

1 3 7 17 21 51 119 357 1,091 3,273 7,637 18,547 22,911 55,641 129,829 389,487

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

389,487 1,168,462 584,231 1,752,694 876,347 2,629,042 1,314,521 3,943,564 1,971,782 985,891 2,957,674 1,478,837 4,436,512 2,218,256 1,109,128 554,564 277,282 138,641 415,924 207,962 103,981 311,944 155,972 77,986 38,993 116,980 58,490 29,245 87,736 43,868 21,934 10,967 32,902 16,451 49,354 24,677 74,032 37,016 18,508 9,254 4,627 13,882 6,941 20,824 10,412 5,206 2,603 7,810 3,905 11,716 5,858 2,929 8,788 4,394 2,197 6,592 3,296 1,648 824 412

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