13 × 17 × 191 × 199

Prime Factor Structure

Factorization String 13 × 17 × 191 × 199

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 9,676,800

Proper Divisor Sum 1,276,811

Digit Sum / Digital Root 55 (Root: 1)

Adjacent Primes #8399987 ← → #8400011

1 13 17 191 199 221 2,483 2,587 3,247 3,383 38,009 42,211 43,979 494,117 646,153 8,399,989

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

8,399,989 25,199,968 12,599,984 6,299,992 3,149,996 1,574,998 787,499 2,362,498 1,181,249 3,543,748 1,771,874 885,937 2,657,812 1,328,906 664,453 1,993,360 996,680 498,340 249,170 124,585 373,756 186,878 93,439 280,318 140,159 420,478 210,239 630,718 315,359 946,078 473,039 1,419,118 709,559 2,128,678 1,064,339 3,193,018 1,596,509 4,789,528 2,394,764 1,197,382 598,691 1,796,074 898,037 2,694,112 1,347,056 673,528 336,764 168,382 84,191 252,574 126,287 378,862 189,431 568,294 284,147 852,442 426,221 1,278,664 639,332 319,666

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