2 × 23 × 31 × 449

Prime Factor Structure

Factorization String 2 × 23 × 31 × 449

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,036,800

Proper Divisor Sum 396,526

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #640267 ← → #640279

1 2 23 31 46 62 449 713 898 1,426 10,327 13,919 20,654 27,838 320,137 640,274

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

640,274 320,137 960,412 480,206 240,103 720,310 360,155 1,080,466 540,233 1,620,700 810,350 405,175 1,215,526 607,763 1,823,290 911,645 2,734,936 1,367,468 683,734 341,867 1,025,602 512,801 1,538,404 769,202 384,601 1,153,804 576,902 288,451 865,354 432,677 1,298,032 649,016 324,508 162,254 81,127 243,382 121,691 365,074 182,537 547,612 273,806 136,903 410,710 205,355 616,066 308,033 924,100 462,050 231,025 693,076 346,538 173,269 519,808 259,904 129,952 64,976 32,488 16,244 8,122 4,061

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