2 × 3³ × 13² × 71

Prime Factor Structure

Factorization String 2 × 3^3 × 13^2 × 71

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,581,120

Proper Divisor Sum 933,174

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #647917 ← → #647951

1 2 3 6 9 13 18 26 27 39 54 71 78 117 142 169 213 234 338 351 426 507 639 702 923 1,014 1,278 1,521 1,846 1,917 2,769 3,042 3,834 4,563 5,538 8,307 9,126 11,999 16,614 23,998 24,921 35,997 49,842 71,994 107,991 215,982 323,973 647,946

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

647,946 323,973 971,920 485,960 242,980 121,490 60,745 182,236 91,118 45,559 136,678 68,339 205,018 102,509 307,528 153,764 76,882 38,441 115,324 57,662 28,831 86,494 43,247 129,742 64,871 194,614 97,307 291,922 145,961 437,884 218,942 109,471 328,414 164,207 492,622 246,311 738,934 369,467 1,108,402 554,201 1,662,604 831,302 415,651 1,246,954 623,477 1,870,432 935,216 467,608 233,804 116,902 58,451 175,354 87,677 263,032 131,516 65,758 32,879 98,638 49,319 147,958

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