3 × 5 × 20639

Prime Factor Structure

Factorization String 3 × 5 × 20639

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 495,360

Proper Divisor Sum 185,775

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #309583 ← → #309599

1 3 5 15 20,639 61,917 103,195 309,585

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

309,585 928,756 464,378 232,189 696,568 348,284 174,142 87,071 261,214 130,607 391,822 195,911 587,734 293,867 881,602 440,801 1,322,404 661,202 330,601 991,804 495,902 247,951 743,854 371,927 1,115,782 557,891 1,673,674 836,837 2,510,512 1,255,256 627,628 313,814 156,907 470,722 235,361 706,084 353,042 176,521 529,564 264,782 132,391 397,174 198,587 595,762 297,881 893,644 446,822 223,411 670,234 335,117 1,005,352 502,676 251,338 125,669 377,008 188,504 94,252 47,126 23,563 70,690

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