3 × 5 × 13 × 31 × 53

Prime Factor Structure

Factorization String 3 × 5 × 13 × 31 × 53

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 580,608

Proper Divisor Sum 260,223

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #320377 ← → #320387

1 3 5 13 15 31 39 53 65 93 155 159 195 265 403 465 689 795 1,209 1,643 2,015 2,067 3,445 4,929 6,045 8,215 10,335 21,359 24,645 64,077 106,795 320,385

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

320,385 961,156 480,578 240,289 720,868 360,434 180,217 540,652 270,326 135,163 405,490 202,745 608,236 304,118 152,059 456,178 228,089 684,268 342,134 171,067 513,202 256,601 769,804 384,902 192,451 577,354 288,677 866,032 433,016 216,508 108,254 54,127 162,382 81,191 243,574 121,787 365,362 182,681 548,044 274,022 137,011 411,034 205,517 616,552 308,276 154,138 77,069 231,208 115,604 57,802 28,901 86,704 43,352 21,676 10,838 5,419 16,258 8,129 24,388 12,194

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