19 × 131 × 643

Prime Factor Structure

Factorization String 19 × 131 × 643

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,700,160

Proper Divisor Sum 99,733

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #1600421 ← → #1600433

1 19 131 643 2,489 12,217 84,233 1,600,427

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

1,600,427 4,801,282 2,400,641 7,201,924 3,600,962 1,800,481 5,401,444 2,700,722 1,350,361 4,051,084 2,025,542 1,012,771 3,038,314 1,519,157 4,557,472 2,278,736 1,139,368 569,684 284,842 142,421 427,264 213,632 106,816 53,408 26,704 13,352 6,676 3,338 1,669 5,008 2,504 1,252 626 313 940 470 235 706 353 1,060 530 265 796 398 199 598 299 898 449 1,348 674 337 1,012 506 253 760 380 190 95 286

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