389 × 1663

Prime Factor Structure

Factorization String 389 × 1663

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 648,960

Proper Divisor Sum 2,053

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #646897 ← → #646909

1 389 1,663 646,907

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

646,907 1,940,722 970,361 2,911,084 1,455,542 727,771 2,183,314 1,091,657 3,274,972 1,637,486 818,743 2,456,230 1,228,115 3,684,346 1,842,173 5,526,520 2,763,260 1,381,630 690,815 2,072,446 1,036,223 3,108,670 1,554,335 4,663,006 2,331,503 6,994,510 3,497,255 10,491,766 5,245,883 15,737,650 7,868,825 23,606,476 11,803,238 5,901,619 17,704,858 8,852,429 26,557,288 13,278,644 6,639,322 3,319,661 9,958,984 4,979,492 2,489,746 1,244,873 3,734,620 1,867,310 933,655 2,800,966 1,400,483 4,201,450 2,100,725 6,302,176 3,151,088 1,575,544 787,772 393,886 196,943 590,830 295,415 886,246

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