3 × 7 × 19919

Prime Factor Structure

Factorization String 3 × 7 × 19919

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 637,440

Proper Divisor Sum 219,141

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #418289 ← → #418303

1 3 7 21 19,919 59,757 139,433 418,299

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

418,299 1,254,898 627,449 1,882,348 941,174 470,587 1,411,762 705,881 2,117,644 1,058,822 529,411 1,588,234 794,117 2,382,352 1,191,176 595,588 297,794 148,897 446,692 223,346 111,673 335,020 167,510 83,755 251,266 125,633 376,900 188,450 94,225 282,676 141,338 70,669 212,008 106,004 53,002 26,501 79,504 39,752 19,876 9,938 4,969 14,908 7,454 3,727 11,182 5,591 16,774 8,387 25,162 12,581 37,744 18,872 9,436 4,718 2,359 7,078 3,539 10,618 5,309 15,928

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