3 × 7 × 283 × 3137

Prime Factor Structure

Factorization String 3 × 7 × 283 × 3137

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 28,518,144

Proper Divisor Sum 9,874,953

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #18643187 ← → #18643193

1 3 7 21 283 849 1,981 3,137 5,943 9,411 21,959 65,877 887,771 2,663,313 6,214,397 18,643,191

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

18,643,191 55,929,574 27,964,787 83,894,362 41,947,181 125,841,544 62,920,772 31,460,386 15,730,193 47,190,580 23,595,290 11,797,645 35,392,936 17,696,468 8,848,234 4,424,117 13,272,352 6,636,176 3,318,088 1,659,044 829,522 414,761 1,244,284 622,142 311,071 933,214 466,607 1,399,822 699,911 2,099,734 1,049,867 3,149,602 1,574,801 4,724,404 2,362,202 1,181,101 3,543,304 1,771,652 885,826 442,913 1,328,740 664,370 332,185 996,556 498,278 249,139 747,418 373,709 1,121,128 560,564 280,282 140,141 420,424 210,212 105,106 52,553 157,660 78,830 39,415 118,246

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