19 × 21751

Prime Factor Structure

Factorization String 19 × 21751

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 435,040

Proper Divisor Sum 21,771

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #413267 ← → #413293

1 19 21,751 413,269

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

413,269 1,239,808 619,904 309,952 154,976 77,488 38,744 19,372 9,686 4,843 14,530 7,265 21,796 10,898 5,449 16,348 8,174 4,087 12,262 6,131 18,394 9,197 27,592 13,796 6,898 3,449 10,348 5,174 2,587 7,762 3,881 11,644 5,822 2,911 8,734 4,367 13,102 6,551 19,654 9,827 29,482 14,741 44,224 22,112 11,056 5,528 2,764 1,382 691 2,074 1,037 3,112 1,556 778 389 1,168 584 292 146 73

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