7 × 19 × 37 × 131

Prime Factor Structure

Factorization String 7 × 19 × 37 × 131

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 802,560

Proper Divisor Sum 157,909

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #644647 ← → #644653

1 7 19 37 131 133 259 703 917 2,489 4,847 4,921 17,423 33,929 92,093 644,651

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

644,651 1,933,954 966,977 2,900,932 1,450,466 725,233 2,175,700 1,087,850 543,925 1,631,776 815,888 407,944 203,972 101,986 50,993 152,980 76,490 38,245 114,736 57,368 28,684 14,342 7,171 21,514 10,757 32,272 16,136 8,068 4,034 2,017 6,052 3,026 1,513 4,540 2,270 1,135 3,406 1,703 5,110 2,555 7,666 3,833 11,500 5,750 2,875 8,626 4,313 12,940 6,470 3,235 9,706 4,853 14,560 7,280 3,640 1,820 910 455 1,366 683

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