3 × 5 × 7 × 6143

Prime Factor Structure

Factorization String 3 × 5 × 7 × 6143

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,179,648

Proper Divisor Sum 534,633

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #645013 ← → #645019

1 3 5 7 15 21 35 105 6,143 18,429 30,715 43,001 92,145 129,003 215,005 645,015

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

645,015 1,935,046 967,523 2,902,570 1,451,285 4,353,856 2,176,928 1,088,464 544,232 272,116 136,058 68,029 204,088 102,044 51,022 25,511 76,534 38,267 114,802 57,401 172,204 86,102 43,051 129,154 64,577 193,732 96,866 48,433 145,300 72,650 36,325 108,976 54,488 27,244 13,622 6,811 20,434 10,217 30,652 15,326 7,663 22,990 11,495 34,486 17,243 51,730 25,865 77,596 38,798 19,399 58,198 29,099 87,298 43,649 130,948 65,474 32,737 98,212 49,106 24,553

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