2⁴ × 17² × 139

Prime Factor Structure

Factorization String 2^4 × 17^2 × 139

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 30

Divisor Sum (σ) 1,332,380

Proper Divisor Sum 689,644

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #642701 ← → #642737

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

642,736 321,368 160,684 80,342 40,171 120,514 60,257 180,772 90,386 45,193 135,580 67,790 33,895 101,686 50,843 152,530 76,265 228,796 114,398 57,199 171,598 85,799 257,398 128,699 386,098 193,049 579,148 289,574 144,787 434,362 217,181 651,544 325,772 162,886 81,443 244,330 122,165 366,496 183,248 91,624 45,812 22,906 11,453 34,360 17,180 8,590 4,295 12,886 6,443 19,330 9,665 28,996 14,498 7,249 21,748 10,874 5,437 16,312 8,156 4,078

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