7 × 13 × 43 × 257

Prime Factor Structure

Factorization String 7 × 13 × 43 × 257

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,271,424

Proper Divisor Sum 265,783

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #1005637 ← → #1005643

1 7 13 43 91 257 301 559 1,799 3,341 3,913 11,051 23,387 77,357 143,663 1,005,641

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

1,005,641 3,016,924 1,508,462 754,231 2,262,694 1,131,347 3,394,042 1,697,021 5,091,064 2,545,532 1,272,766 636,383 1,909,150 954,575 2,863,726 1,431,863 4,295,590 2,147,795 6,443,386 3,221,693 9,665,080 4,832,540 2,416,270 1,208,135 3,624,406 1,812,203 5,436,610 2,718,305 8,154,916 4,077,458 2,038,729 6,116,188 3,058,094 1,529,047 4,587,142 2,293,571 6,880,714 3,440,357 10,321,072 5,160,536 2,580,268 1,290,134 645,067 1,935,202 967,601 2,902,804 1,451,402 725,701 2,177,104 1,088,552 544,276 272,138 136,069 408,208 204,104 102,052 51,026 25,513 76,540 38,270

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