3 × 7 × 19 × 47

Prime Factor Structure

Factorization String 3 × 7 × 19 × 47

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 30,720

Proper Divisor Sum 11,967

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #18749 ← → #18757

1 3 7 19 21 47 57 133 141 329 399 893 987 2,679 6,251 18,753

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

18,753 56,260 28,130 14,065 42,196 21,098 10,549 31,648 15,824 7,912 3,956 1,978 989 2,968 1,484 742 371 1,114 557 1,672 836 418 209 628 314 157 472 236 118 59 178 89 268 134 67 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4

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