3² × 1493 × 1609

Prime Factor Structure

Factorization String 3^2 × 1493 × 1609

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 31,269,420

Proper Divisor Sum 9,649,287

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #21620129 ← → #21620153

1 3 9 1,493 1,609 4,479 4,827 13,437 14,481 2,402,237 7,206,711 21,620,133

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

21,620,133 64,860,400 32,430,200 16,215,100 8,107,550 4,053,775 12,161,326 6,080,663 18,241,990 9,120,995 27,362,986 13,681,493 41,044,480 20,522,240 10,261,120 5,130,560 2,565,280 1,282,640 641,320 320,660 160,330 80,165 240,496 120,248 60,124 30,062 15,031 45,094 22,547 67,642 33,821 101,464 50,732 25,366 12,683 38,050 19,025 57,076 28,538 14,269 42,808 21,404 10,702 5,351 16,054 8,027 24,082 12,041 36,124 18,062 9,031 27,094 13,547 40,642 20,321 60,964 30,482 15,241 45,724 22,862

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