13 × 19 × 2221

Prime Factor Structure

Factorization String 13 × 19 × 2221

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 622,160

Proper Divisor Sum 73,573

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #548579 ← → #548591

1 13 19 247 2,221 28,873 42,199 548,587

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

548,587 1,645,762 822,881 2,468,644 1,234,322 617,161 1,851,484 925,742 462,871 1,388,614 694,307 2,082,922 1,041,461 3,124,384 1,562,192 781,096 390,548 195,274 97,637 292,912 146,456 73,228 36,614 18,307 54,922 27,461 82,384 41,192 20,596 10,298 5,149 15,448 7,724 3,862 1,931 5,794 2,897 8,692 4,346 2,173 6,520 3,260 1,630 815 2,446 1,223 3,670 1,835 5,506 2,753 8,260 4,130 2,065 6,196 3,098 1,549 4,648 2,324 1,162 581

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