3 × 7 × 29 × 647

Prime Factor Structure

Factorization String 3 × 7 × 29 × 647

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 622,080

Proper Divisor Sum 228,057

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #394019 ← → #394039

1 3 7 21 29 87 203 609 647 1,941 4,529 13,587 18,763 56,289 131,341 394,023

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

394,023 1,182,070 591,035 1,773,106 886,553 2,659,660 1,329,830 664,915 1,994,746 997,373 2,992,120 1,496,060 748,030 374,015 1,122,046 561,023 1,683,070 841,535 2,524,606 1,262,303 3,786,910 1,893,455 5,680,366 2,840,183 8,520,550 4,260,275 12,780,826 6,390,413 19,171,240 9,585,620 4,792,810 2,396,405 7,189,216 3,594,608 1,797,304 898,652 449,326 224,663 673,990 336,995 1,010,986 505,493 1,516,480 758,240 379,120 189,560 94,780 47,390 23,695 71,086 35,543 106,630 53,315 159,946 79,973 239,920 119,960 59,980 29,990 14,995

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