5 × 7 × 19 × 31

Prime Factor Structure

Factorization String 5 × 7 × 19 × 31

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 30,720

Proper Divisor Sum 10,105

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #20611 ← → #20627

1 5 7 19 31 35 95 133 155 217 589 665 1,085 2,945 4,123 20,615

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

20,615 61,846 30,923 92,770 46,385 139,156 69,578 34,789 104,368 52,184 26,092 13,046 6,523 19,570 9,785 29,356 14,678 7,339 22,018 11,009 33,028 16,514 8,257 24,772 12,386 6,193 18,580 9,290 4,645 13,936 6,968 3,484 1,742 871 2,614 1,307 3,922 1,961 5,884 2,942 1,471 4,414 2,207 6,622 3,311 9,934 4,967 14,902 7,451 22,354 11,177 33,532 16,766 8,383 25,150 12,575 37,726 18,863 56,590 28,295

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