2 × 3² × 11 × 107

Prime Factor Structure

Factorization String 2 × 3^2 × 11 × 107

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 50,544

Proper Divisor Sum 29,358

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #21179 ← → #21187

1 2 3 6 9 11 18 22 33 66 99 107 198 214 321 642 963 1,177 1,926 2,354 3,531 7,062 10,593 21,186

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

21,186 10,593 31,780 15,890 7,945 23,836 11,918 5,959 17,878 8,939 26,818 13,409 40,228 20,114 10,057 30,172 15,086 7,543 22,630 11,315 33,946 16,973 50,920 25,460 12,730 6,365 19,096 9,548 4,774 2,387 7,162 3,581 10,744 5,372 2,686 1,343 4,030 2,015 6,046 3,023 9,070 4,535 13,606 6,803 20,410 10,205 30,616 15,308 7,654 3,827 11,482 5,741 17,224 8,612 4,306 2,153 6,460 3,230 1,615 4,846

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