3 × 7 × 13 × 43

Prime Factor Structure

Factorization String 3 × 7 × 13 × 43

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 19,712

Proper Divisor Sum 7,973

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #11731 ← → #11743

1 3 7 13 21 39 43 91 129 273 301 559 903 1,677 3,913 11,739

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

11,739 35,218 17,609 52,828 26,414 13,207 39,622 19,811 59,434 29,717 89,152 44,576 22,288 11,144 5,572 2,786 1,393 4,180 2,090 1,045 3,136 1,568 784 392 196 98 49 148 74 37 112 56 28 14 7 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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