2 × 13 × 43 × 257

Prime Factor Structure

Factorization String 2 × 13 × 43 × 257

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 476,784

Proper Divisor Sum 189,458

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #287321 ← → #287327

1 2 13 26 43 86 257 514 559 1,118 3,341 6,682 11,051 22,102 143,663 287,326

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

287,326 143,663 430,990 215,495 646,486 323,243 969,730 484,865 1,454,596 727,298 363,649 1,090,948 545,474 272,737 818,212 409,106 204,553 613,660 306,830 153,415 460,246 230,123 690,370 345,185 1,035,556 517,778 258,889 776,668 388,334 194,167 582,502 291,251 873,754 436,877 1,310,632 655,316 327,658 163,829 491,488 245,744 122,872 61,436 30,718 15,359 46,078 23,039 69,118 34,559 103,678 51,839 155,518 77,759 233,278 116,639 349,918 174,959 524,878 262,439 787,318 393,659

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