3 × 19 × 163 × 2153

Prime Factor Structure

Factorization String 3 × 19 × 163 × 2153

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 28,260,480

Proper Divisor Sum 8,256,957

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #20003521 ← → #20003549

1 3 19 57 163 489 2,153 3,097 6,459 9,291 40,907 122,721 350,939 1,052,817 6,667,841 20,003,523

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

20,003,523 60,010,570 30,005,285 90,015,856 45,007,928 22,503,964 11,251,982 5,625,991 16,877,974 8,438,987 25,316,962 12,658,481 37,975,444 18,987,722 9,493,861 28,481,584 14,240,792 7,120,396 3,560,198 1,780,099 5,340,298 2,670,149 8,010,448 4,005,224 2,002,612 1,001,306 500,653 1,501,960 750,980 375,490 187,745 563,236 281,618 140,809 422,428 211,214 105,607 316,822 158,411 475,234 237,617 712,852 356,426 178,213 534,640 267,320 133,660 66,830 33,415 100,246 50,123 150,370 75,185 225,556 112,778 56,389 169,168 84,584 42,292 21,146

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