257 × 21157

Prime Factor Structure

Factorization String 257 × 21157

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 5,458,764

Proper Divisor Sum 21,415

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #5437343 ← → #5437351

1 257 21,157 5,437,349

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

5,437,349 16,312,048 8,156,024 4,078,012 2,039,006 1,019,503 3,058,510 1,529,255 4,587,766 2,293,883 6,881,650 3,440,825 10,322,476 5,161,238 2,580,619 7,741,858 3,870,929 11,612,788 5,806,394 2,903,197 8,709,592 4,354,796 2,177,398 1,088,699 3,266,098 1,633,049 4,899,148 2,449,574 1,224,787 3,674,362 1,837,181 5,511,544 2,755,772 1,377,886 688,943 2,066,830 1,033,415 3,100,246 1,550,123 4,650,370 2,325,185 6,975,556 3,487,778 1,743,889 5,231,668 2,615,834 1,307,917 3,923,752 1,961,876 980,938 490,469 1,471,408 735,704 367,852 183,926 91,963 275,890 137,945 413,836 206,918

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