13 × 19 × 2593

Prime Factor Structure

Factorization String 13 × 19 × 2593

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 726,320

Proper Divisor Sum 85,849

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #640463 ← → #640477

1 13 19 247 2,593 33,709 49,267 640,471

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

640,471 1,921,414 960,707 2,882,122 1,441,061 4,323,184 2,161,592 1,080,796 540,398 270,199 810,598 405,299 1,215,898 607,949 1,823,848 911,924 455,962 227,981 683,944 341,972 170,986 85,493 256,480 128,240 64,120 32,060 16,030 8,015 24,046 12,023 36,070 18,035 54,106 27,053 81,160 40,580 20,290 10,145 30,436 15,218 7,609 22,828 11,414 5,707 17,122 8,561 25,684 12,842 6,421 19,264 9,632 4,816 2,408 1,204 602 301 904 452 226 113

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