2 × 7 × 19 × 811

Prime Factor Structure

Factorization String 2 × 7 × 19 × 811

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 389,760

Proper Divisor Sum 174,034

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #215723 ← → #215737

1 2 7 14 19 38 133 266 811 1,622 5,677 11,354 15,409 30,818 107,863 215,726

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

215,726 107,863 323,590 161,795 485,386 242,693 728,080 364,040 182,020 91,010 45,505 136,516 68,258 34,129 102,388 51,194 25,597 76,792 38,396 19,198 9,599 28,798 14,399 43,198 21,599 64,798 32,399 97,198 48,599 145,798 72,899 218,698 109,349 328,048 164,024 82,012 41,006 20,503 61,510 30,755 92,266 46,133 138,400 69,200 34,600 17,300 8,650 4,325 12,976 6,488 3,244 1,622 811 2,434 1,217 3,652 1,826 913 2,740 1,370

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