3 × 7² × 19

Prime Factor Structure

Factorization String 3 × 7^2 × 19

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 4,560

Proper Divisor Sum 1,767

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #2791 ← → #2797

1 3 7 19 21 49 57 133 147 399 931 2,793

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

2,793 8,380 4,190 2,095 6,286 3,143 9,430 4,715 14,146 7,073 21,220 10,610 5,305 15,916 7,958 3,979 11,938 5,969 17,908 8,954 4,477 13,432 6,716 3,358 1,679 5,038 2,519 7,558 3,779 11,338 5,669 17,008 8,504 4,252 2,126 1,063 3,190 1,595 4,786 2,393 7,180 3,590 1,795 5,386 2,693 8,080 4,040 2,020 1,010 505 1,516 758 379 1,138 569 1,708 854 427 1,282 641

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