3 × 7² × 13 × 73

Prime Factor Structure

Factorization String 3 × 7^2 × 13 × 73

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 236,208

Proper Divisor Sum 96,705

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #139501 ← → #139511

1 3 7 13 21 39 49 73 91 147 219 273 511 637 949 1,533 1,911 2,847 3,577 6,643 10,731 19,929 46,501 139,503

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

139,503 418,510 209,255 627,766 313,883 941,650 470,825 1,412,476 706,238 353,119 1,059,358 529,679 1,589,038 794,519 2,383,558 1,191,779 3,575,338 1,787,669 5,363,008 2,681,504 1,340,752 670,376 335,188 167,594 83,797 251,392 125,696 62,848 31,424 15,712 7,856 3,928 1,964 982 491 1,474 737 2,212 1,106 553 1,660 830 415 1,246 623 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777 5,332

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