7 × 13 × 43 × 491

Prime Factor Structure

Factorization String 7 × 13 × 43 × 491

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,424,576

Proper Divisor Sum 503,293

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #1921277 ← → #1921307

1 7 13 43 91 301 491 559 3,437 3,913 6,383 21,113 44,681 147,791 274,469 1,921,283

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

1,921,283 5,763,850 2,881,925 8,645,776 4,322,888 2,161,444 1,080,722 540,361 1,621,084 810,542 405,271 1,215,814 607,907 1,823,722 911,861 2,735,584 1,367,792 683,896 341,948 170,974 85,487 256,462 128,231 384,694 192,347 577,042 288,521 865,564 432,782 216,391 649,174 324,587 973,762 486,881 1,460,644 730,322 365,161 1,095,484 547,742 273,871 821,614 410,807 1,232,422 616,211 1,848,634 924,317 2,772,952 1,386,476 693,238 346,619 1,039,858 519,929 1,559,788 779,894 389,947 1,169,842 584,921 1,754,764 877,382 438,691

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