3² × 7 × 43 × 239

Prime Factor Structure

Factorization String 3^2 × 7 × 43 × 239

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,098,240

Proper Divisor Sum 450,789

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #647441 ← → #647453

1 3 7 9 21 43 63 129 239 301 387 717 903 1,673 2,151 2,709 5,019 10,277 15,057 30,831 71,939 92,493 215,817 647,451

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

647,451 1,942,354 971,177 2,913,532 1,456,766 728,383 2,185,150 1,092,575 3,277,726 1,638,863 4,916,590 2,458,295 7,374,886 3,687,443 11,062,330 5,531,165 16,593,496 8,296,748 4,148,374 2,074,187 6,222,562 3,111,281 9,333,844 4,666,922 2,333,461 7,000,384 3,500,192 1,750,096 875,048 437,524 218,762 109,381 328,144 164,072 82,036 41,018 20,509 61,528 30,764 15,382 7,691 23,074 11,537 34,612 17,306 8,653 25,960 12,980 6,490 3,245 9,736 4,868 2,434 1,217 3,652 1,826 913 2,740 1,370 685

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