3 × 13² × 397

Prime Factor Structure

Factorization String 3 × 13^2 × 397

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 291,336

Proper Divisor Sum 90,057

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #201251 ← → #201281

1 3 13 39 169 397 507 1,191 5,161 15,483 67,093 201,279

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

201,279 603,838 301,919 905,758 452,879 1,358,638 679,319 2,037,958 1,018,979 3,056,938 1,528,469 4,585,408 2,292,704 1,146,352 573,176 286,588 143,294 71,647 214,942 107,471 322,414 161,207 483,622 241,811 725,434 362,717 1,088,152 544,076 272,038 136,019 408,058 204,029 612,088 306,044 153,022 76,511 229,534 114,767 344,302 172,151 516,454 258,227 774,682 387,341 1,162,024 581,012 290,506 145,253 435,760 217,880 108,940 54,470 27,235 81,706 40,853 122,560 61,280 30,640 15,320 7,660

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