2 × 3² × 221621

Prime Factor Structure

Factorization String 2 × 3^2 × 221621

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 8,643,258

Proper Divisor Sum 4,654,080

Digit Sum / Digital Root 45 (Root: 9)

Adjacent Primes #3989171 ← → #3989191

1 2 3 6 9 18 221,621 443,242 664,863 1,329,726 1,994,589 3,989,178

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

3,989,178 1,994,589 5,983,768 2,991,884 1,495,942 747,971 2,243,914 1,121,957 3,365,872 1,682,936 841,468 420,734 210,367 631,102 315,551 946,654 473,327 1,419,982 709,991 2,129,974 1,064,987 3,194,962 1,597,481 4,792,444 2,396,222 1,198,111 3,594,334 1,797,167 5,391,502 2,695,751 8,087,254 4,043,627 12,130,882 6,065,441 18,196,324 9,098,162 4,549,081 13,647,244 6,823,622 3,411,811 10,235,434 5,117,717 15,353,152 7,676,576 3,838,288 1,919,144 959,572 479,786 239,893 719,680 359,840 179,920 89,960 44,980 22,490 11,245 33,736 16,868 8,434 4,217

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