3 × 7 × 18913

Prime Factor Structure

Factorization String 3 × 7 × 18913

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 605,248

Proper Divisor Sum 208,075

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #397153 ← → #397181

1 3 7 21 18,913 56,739 132,391 397,173

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

397,173 1,191,520 595,760 297,880 148,940 74,470 37,235 111,706 55,853 167,560 83,780 41,890 20,945 62,836 31,418 15,709 47,128 23,564 11,782 5,891 17,674 8,837 26,512 13,256 6,628 3,314 1,657 4,972 2,486 1,243 3,730 1,865 5,596 2,798 1,399 4,198 2,099 6,298 3,149 9,448 4,724 2,362 1,181 3,544 1,772 886 443 1,330 665 1,996 998 499 1,498 749 2,248 1,124 562 281 844 422

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