13 × 19 × 1997

Prime Factor Structure

Factorization String 13 × 19 × 1997

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 559,440

Proper Divisor Sum 66,181

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #493249 ← → #493277

1 13 19 247 1,997 25,961 37,943 493,259

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

493,259 1,479,778 739,889 2,219,668 1,109,834 554,917 1,664,752 832,376 416,188 208,094 104,047 312,142 156,071 468,214 234,107 702,322 351,161 1,053,484 526,742 263,371 790,114 395,057 1,185,172 592,586 296,293 888,880 444,440 222,220 111,110 55,555 166,666 83,333 250,000 125,000 62,500 31,250 15,625 46,876 23,438 11,719 35,158 17,579 52,738 26,369 79,108 39,554 19,777 59,332 29,666 14,833 44,500 22,250 11,125 33,376 16,688 8,344 4,172 2,086 1,043 3,130

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