109 × 199

Prime Factor Structure

Factorization String 109 × 199

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 22,000

Proper Divisor Sum 309

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #21683 ← → #21701

1 109 199 21,691

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

21,691 65,074 32,537 97,612 48,806 24,403 73,210 36,605 109,816 54,908 27,454 13,727 41,182 20,591 61,774 30,887 92,662 46,331 138,994 69,497 208,492 104,246 52,123 156,370 78,185 234,556 117,278 58,639 175,918 87,959 263,878 131,939 395,818 197,909 593,728 296,864 148,432 74,216 37,108 18,554 9,277 27,832 13,916 6,958 3,479 10,438 5,219 15,658 7,829 23,488 11,744 5,872 2,936 1,468 734 367 1,102 551 1,654 827

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