13 × 17 × 2897

Prime Factor Structure

Factorization String 13 × 17 × 2897

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 730,296

Proper Divisor Sum 90,059

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #640231 ← → #640247

1 13 17 221 2,897 37,661 49,249 640,237

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

640,237 1,920,712 960,356 480,178 240,089 720,268 360,134 180,067 540,202 270,101 810,304 405,152 202,576 101,288 50,644 25,322 12,661 37,984 18,992 9,496 4,748 2,374 1,187 3,562 1,781 5,344 2,672 1,336 668 334 167 502 251 754 377 1,132 566 283 850 425 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734 1,367 4,102

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