3 × 307 × 21739

Prime Factor Structure

Factorization String 3 × 307 × 21739

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 26,783,680

Proper Divisor Sum 6,762,061

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #20021549 ← → #20021623

1 3 307 921 21,739 65,217 6,673,873 20,021,619

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

20,021,619 60,064,858 30,032,429 90,097,288 45,048,644 22,524,322 11,262,161 33,786,484 16,893,242 8,446,621 25,339,864 12,669,932 6,334,966 3,167,483 9,502,450 4,751,225 14,253,676 7,126,838 3,563,419 10,690,258 5,345,129 16,035,388 8,017,694 4,008,847 12,026,542 6,013,271 18,039,814 9,019,907 27,059,722 13,529,861 40,589,584 20,294,792 10,147,396 5,073,698 2,536,849 7,610,548 3,805,274 1,902,637 5,707,912 2,853,956 1,426,978 713,489 2,140,468 1,070,234 535,117 1,605,352 802,676 401,338 200,669 602,008 301,004 150,502 75,251 225,754 112,877 338,632 169,316 84,658 42,329 126,988

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