3² × 5 × 41 × 347

Prime Factor Structure

Factorization String 3^2 × 5 × 41 × 347

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,140,048

Proper Divisor Sum 499,833

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #640193 ← → #640219

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

640,215 1,920,646 960,323 2,880,970 1,440,485 4,321,456 2,160,728 1,080,364 540,182 270,091 810,274 405,137 1,215,412 607,706 303,853 911,560 455,780 227,890 113,945 341,836 170,918 85,459 256,378 128,189 384,568 192,284 96,142 48,071 144,214 72,107 216,322 108,161 324,484 162,242 81,121 243,364 121,682 60,841 182,524 91,262 45,631 136,894 68,447 205,342 102,671 308,014 154,007 462,022 231,011 693,034 346,517 1,039,552 519,776 259,888 129,944 64,972 32,486 16,243 48,730 24,365

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