3 × 7² × 19891

Prime Factor Structure

Factorization String 3 × 7^2 × 19891

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 4,535,376

Proper Divisor Sum 1,611,399

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #2923969 ← → #2924021

1 3 7 21 49 147 19,891 59,673 139,237 417,711 974,659 2,923,977

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

2,923,977 8,771,932 4,385,966 2,192,983 6,578,950 3,289,475 9,868,426 4,934,213 14,802,640 7,401,320 3,700,660 1,850,330 925,165 2,775,496 1,387,748 693,874 346,937 1,040,812 520,406 260,203 780,610 390,305 1,170,916 585,458 292,729 878,188 439,094 219,547 658,642 329,321 987,964 493,982 246,991 740,974 370,487 1,111,462 555,731 1,667,194 833,597 2,500,792 1,250,396 625,198 312,599 937,798 468,899 1,406,698 703,349 2,110,048 1,055,024 527,512 263,756 131,878 65,939 197,818 98,909 296,728 148,364 74,182 37,091 111,274

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