3⁹ × 7

Prime Factor Structure

Factorization String 3^9 × 7

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 20

Divisor Sum (σ) 236,192

Proper Divisor Sum 98,411

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #137777 ← → #137791

1 3 7 9 21 27 63 81 189 243 567 729 1,701 2,187 5,103 6,561 15,309 19,683 45,927 137,781

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

137,781 413,344 206,672 103,336 51,668 25,834 12,917 38,752 19,376 9,688 4,844 2,422 1,211 3,634 1,817 5,452 2,726 1,363 4,090 2,045 6,136 3,068 1,534 767 2,302 1,151 3,454 1,727 5,182 2,591 7,774 3,887 11,662 5,831 17,494 8,747 26,242 13,121 39,364 19,682 9,841 29,524 14,762 7,381 22,144 11,072 5,536 2,768 1,384 692 346 173 520 260 130 65 196 98 49 148

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