13 × 49307

Prime Factor Structure

Factorization String 13 × 49307

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 690,312

Proper Divisor Sum 49,321

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #640973 ← → #640993

1 13 49,307 640,991

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

640,991 1,922,974 961,487 2,884,462 1,442,231 4,326,694 2,163,347 6,490,042 3,245,021 9,735,064 4,867,532 2,433,766 1,216,883 3,650,650 1,825,325 5,475,976 2,737,988 1,368,994 684,497 2,053,492 1,026,746 513,373 1,540,120 770,060 385,030 192,515 577,546 288,773 866,320 433,160 216,580 108,290 54,145 162,436 81,218 40,609 121,828 60,914 30,457 91,372 45,686 22,843 68,530 34,265 102,796 51,398 25,699 77,098 38,549 115,648 57,824 28,912 14,456 7,228 3,614 1,807 5,422 2,711 8,134 4,067

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