3² × 7² × 643

Prime Factor Structure

Factorization String 3^2 × 7^2 × 643

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 477,204

Proper Divisor Sum 193,641

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #283553 ← → #283571

1 3 7 9 21 49 63 147 441 643 1,929 4,501 5,787 13,503 31,507 40,509 94,521 283,563

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

283,563 850,690 425,345 1,276,036 638,018 319,009 957,028 478,514 239,257 717,772 358,886 179,443 538,330 269,165 807,496 403,748 201,874 100,937 302,812 151,406 75,703 227,110 113,555 340,666 170,333 511,000 255,500 127,750 63,875 191,626 95,813 287,440 143,720 71,860 35,930 17,965 53,896 26,948 13,474 6,737 20,212 10,106 5,053 15,160 7,580 3,790 1,895 5,686 2,843 8,530 4,265 12,796 6,398 3,199 9,598 4,799 14,398 7,199 21,598 10,799

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