2² × 5² × 21991

Prime Factor Structure

Factorization String 2^2 × 5^2 × 21991

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 4,772,264

Proper Divisor Sum 2,573,164

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #2199077 ← → #2199121

1 2 4 5 10 20 25 50 100 21,991 43,982 87,964 109,955 219,910 439,820 549,775 1,099,550 2,199,100

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

2,199,100 1,099,550 549,775 1,649,326 824,663 2,473,990 1,236,995 3,710,986 1,855,493 5,566,480 2,783,240 1,391,620 695,810 347,905 1,043,716 521,858 260,929 782,788 391,394 195,697 587,092 293,546 146,773 440,320 220,160 110,080 55,040 27,520 13,760 6,880 3,440 1,720 860 430 215 646 323 970 485 1,456 728 364 182 91 274 137 412 206 103 310 155 466 233 700 350 175 526 263 790 395

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