13 × 17 × 19 × 509

Prime Factor Structure

Factorization String 13 × 17 × 19 × 509

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,570,400

Proper Divisor Sum 433,109

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #2137279 ← → #2137301

1 13 17 19 221 247 323 509 4,199 6,617 8,653 9,671 112,489 125,723 164,407 2,137,291

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

2,137,291 6,411,874 3,205,937 9,617,812 4,808,906 2,404,453 7,213,360 3,606,680 1,803,340 901,670 450,835 1,352,506 676,253 2,028,760 1,014,380 507,190 253,595 760,786 380,393 1,141,180 570,590 285,295 855,886 427,943 1,283,830 641,915 1,925,746 962,873 2,888,620 1,444,310 722,155 2,166,466 1,083,233 3,249,700 1,624,850 812,425 2,437,276 1,218,638 609,319 1,827,958 913,979 2,741,938 1,370,969 4,112,908 2,056,454 1,028,227 3,084,682 1,542,341 4,627,024 2,313,512 1,156,756 578,378 289,189 867,568 433,784 216,892 108,446 54,223 162,670 81,335

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