2² × 5 × 19919

Prime Factor Structure

Factorization String 2^2 × 5 × 19919

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 836,640

Proper Divisor Sum 438,260

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #398369 ← → #398393

1 2 4 5 10 20 19,919 39,838 79,676 99,595 199,190 398,380

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

398,380 199,190 99,595 298,786 149,393 448,180 224,090 112,045 336,136 168,068 84,034 42,017 126,052 63,026 31,513 94,540 47,270 23,635 70,906 35,453 106,360 53,180 26,590 13,295 39,886 19,943 59,830 29,915 89,746 44,873 134,620 67,310 33,655 100,966 50,483 151,450 75,725 227,176 113,588 56,794 28,397 85,192 42,596 21,298 10,649 31,948 15,974 7,987 23,962 11,981 35,944 17,972 8,986 4,493 13,480 6,740 3,370 1,685 5,056 2,528

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