3 × 7 × 20983

Prime Factor Structure

Factorization String 3 × 7 × 20983

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 671,488

Proper Divisor Sum 230,845

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #440641 ← → #440651

1 3 7 21 20,983 62,949 146,881 440,643

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

440,643 1,321,930 660,965 1,982,896 991,448 495,724 247,862 123,931 371,794 185,897 557,692 278,846 139,423 418,270 209,135 627,406 313,703 941,110 470,555 1,411,666 705,833 2,117,500 1,058,750 529,375 1,588,126 794,063 2,382,190 1,191,095 3,573,286 1,786,643 5,359,930 2,679,965 8,039,896 4,019,948 2,009,974 1,004,987 3,014,962 1,507,481 4,522,444 2,261,222 1,130,611 3,391,834 1,695,917 5,087,752 2,543,876 1,271,938 635,969 1,907,908 953,954 476,977 1,430,932 715,466 357,733 1,073,200 536,600 268,300 134,150 67,075 201,226 100,613

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