2² × 3 × 7 × 29 × 263

Prime Factor Structure

Factorization String 2^2 × 3 × 7 × 29 × 263

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,774,080

Proper Divisor Sum 1,133,412

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #640667 ← → #640669

1 2 3 4 6 7 12 14 21 28 29 42 58 84 87 116 174 203 263 348 406 526 609 789 812 1,052 1,218 1,578 1,841 2,436 3,156 3,682 5,523 7,364 7,627 11,046 15,254 22,092 22,881 30,508 45,762 53,389 91,524 106,778 160,167 213,556 320,334 640,668

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

640,668 320,334 160,167 480,502 240,251 720,754 360,377 1,081,132 540,566 270,283 810,850 405,425 1,216,276 608,138 304,069 912,208 456,104 228,052 114,026 57,013 171,040 85,520 42,760 21,380 10,690 5,345 16,036 8,018 4,009 12,028 6,014 3,007 9,022 4,511 13,534 6,767 20,302 10,151 30,454 15,227 45,682 22,841 68,524 34,262 17,131 51,394 25,697 77,092 38,546 19,273 57,820 28,910 14,455 43,366 21,683 65,050 32,525 97,576 48,788 24,394

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