13 × 19889

Prime Factor Structure

Factorization String 13 × 19889

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 278,460

Proper Divisor Sum 19,903

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #258551 ← → #258563

1 13 19,889 258,557

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

258,557 775,672 387,836 193,918 96,959 290,878 145,439 436,318 218,159 654,478 327,239 981,718 490,859 1,472,578 736,289 2,208,868 1,104,434 552,217 1,656,652 828,326 414,163 1,242,490 621,245 1,863,736 931,868 465,934 232,967 698,902 349,451 1,048,354 524,177 1,572,532 786,266 393,133 1,179,400 589,700 294,850 147,425 442,276 221,138 110,569 331,708 165,854 82,927 248,782 124,391 373,174 186,587 559,762 279,881 839,644 419,822 209,911 629,734 314,867 944,602 472,301 1,416,904 708,452 354,226

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