3 × 7 × 19 × 1627

Prime Factor Structure

Factorization String 3 × 7 × 19 × 1627

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,041,920

Proper Divisor Sum 392,747

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #649157 ← → #649183

1 3 7 19 21 57 133 399 1,627 4,881 11,389 30,913 34,167 92,739 216,391 649,173

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

649,173 1,947,520 973,760 486,880 243,440 121,720 60,860 30,430 15,215 45,646 22,823 68,470 34,235 102,706 51,353 154,060 77,030 38,515 115,546 57,773 173,320 86,660 43,330 21,665 64,996 32,498 16,249 48,748 24,374 12,187 36,562 18,281 54,844 27,422 13,711 41,134 20,567 61,702 30,851 92,554 46,277 138,832 69,416 34,708 17,354 8,677 26,032 13,016 6,508 3,254 1,627 4,882 2,441 7,324 3,662 1,831 5,494 2,747 8,242 4,121

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