13 × 21559

Prime Factor Structure

Factorization String 13 × 21559

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 301,840

Proper Divisor Sum 21,573

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #280253 ← → #280277

1 13 21,559 280,267

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

280,267 840,802 420,401 1,261,204 630,602 315,301 945,904 472,952 236,476 118,238 59,119 177,358 88,679 266,038 133,019 399,058 199,529 598,588 299,294 149,647 448,942 224,471 673,414 336,707 1,010,122 505,061 1,515,184 757,592 378,796 189,398 94,699 284,098 142,049 426,148 213,074 106,537 319,612 159,806 79,903 239,710 119,855 359,566 179,783 539,350 269,675 809,026 404,513 1,213,540 606,770 303,385 910,156 455,078 227,539 682,618 341,309 1,023,928 511,964 255,982 127,991 383,974

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