5 × 11 × 389 × 983

Prime Factor Structure

Factorization String 5 × 11 × 389 × 983

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 27,630,720

Proper Divisor Sum 6,599,435

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #21031277 ← → #21031289

1 5 11 55 389 983 1,945 4,279 4,915 10,813 21,395 54,065 382,387 1,911,935 4,206,257 21,031,285

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

21,031,285 63,093,856 31,546,928 15,773,464 7,886,732 3,943,366 1,971,683 5,915,050 2,957,525 8,872,576 4,436,288 2,218,144 1,109,072 554,536 277,268 138,634 69,317 207,952 103,976 51,988 25,994 12,997 38,992 19,496 9,748 4,874 2,437 7,312 3,656 1,828 914 457 1,372 686 343 1,030 515 1,546 773 2,320 1,160 580 290 145 436 218 109 328 164 82 41 124 62 31 94 47 142 71 214 107

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