13 × 1539217

Prime Factor Structure

Factorization String 13 × 1539217

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 21,549,052

Proper Divisor Sum 1,539,231

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #20009819 ← → #20009863

1 13 1,539,217 20,009,821

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

20,009,821 60,029,464 30,014,732 15,007,366 7,503,683 22,511,050 11,255,525 33,766,576 16,883,288 8,441,644 4,220,822 2,110,411 6,331,234 3,165,617 9,496,852 4,748,426 2,374,213 7,122,640 3,561,320 1,780,660 890,330 445,165 1,335,496 667,748 333,874 166,937 500,812 250,406 125,203 375,610 187,805 563,416 281,708 140,854 70,427 211,282 105,641 316,924 158,462 79,231 237,694 118,847 356,542 178,271 534,814 267,407 802,222 401,111 1,203,334 601,667 1,805,002 902,501 2,707,504 1,353,752 676,876 338,438 169,219 507,658 253,829 761,488

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