2² × 5 × 11² × 89

Prime Factor Structure

Factorization String 2^2 × 5 × 11^2 × 89

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 502,740

Proper Divisor Sum 287,360

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #215359 ← → #215381

1 2 4 5 10 11 20 22 44 55 89 110 121 178 220 242 356 445 484 605 890 979 1,210 1,780 1,958 2,420 3,916 4,895 9,790 10,769 19,580 21,538 43,076 53,845 107,690 215,380

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

215,380 107,690 53,845 161,536 80,768 40,384 20,192 10,096 5,048 2,524 1,262 631 1,894 947 2,842 1,421 4,264 2,132 1,066 533 1,600 800 400 200 100 50 25 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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