2 × 5 × 11 × 199

Prime Factor Structure

Factorization String 2 × 5 × 11 × 199

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 43,200

Proper Divisor Sum 21,310

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #21881 ← → #21893

1 2 5 10 11 22 55 110 199 398 995 1,990 2,189 4,378 10,945 21,890

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

21,890 10,945 32,836 16,418 8,209 24,628 12,314 6,157 18,472 9,236 4,618 2,309 6,928 3,464 1,732 866 433 1,300 650 325 976 488 244 122 61 184 92 46 23 70 35 106 53 160 80 40 20 10 5 16 8 4 2 1

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