13 × 21569

Prime Factor Structure

Factorization String 13 × 21569

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 301,980

Proper Divisor Sum 21,583

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #280373 ← → #280409

1 13 21,569 280,397

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

280,397 841,192 420,596 210,298 105,149 315,448 157,724 78,862 39,431 118,294 59,147 177,442 88,721 266,164 133,082 66,541 199,624 99,812 49,906 24,953 74,860 37,430 18,715 56,146 28,073 84,220 42,110 21,055 63,166 31,583 94,750 47,375 142,126 71,063 213,190 106,595 319,786 159,893 479,680 239,840 119,920 59,960 29,980 14,990 7,495 22,486 11,243 33,730 16,865 50,596 25,298 12,649 37,948 18,974 9,487 28,462 14,231 42,694 21,347 64,042

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