257 × 409

Prime Factor Structure

Factorization String 257 × 409

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 105,780

Proper Divisor Sum 667

Digit Sum / Digital Root 11 (Root: 2)

Adjacent Primes #105107 ← → #105137

1 257 409 105,113

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

105,113 315,340 157,670 78,835 236,506 118,253 354,760 177,380 88,690 44,345 133,036 66,518 33,259 99,778 49,889 149,668 74,834 37,417 112,252 56,126 28,063 84,190 42,095 126,286 63,143 189,430 94,715 284,146 142,073 426,220 213,110 106,555 319,666 159,833 479,500 239,750 119,875 359,626 179,813 539,440 269,720 134,860 67,430 33,715 101,146 50,573 151,720 75,860 37,930 18,965 56,896 28,448 14,224 7,112 3,556 1,778 889 2,668 1,334 667

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