218,130

2 × 3 × 5 × 11 × 661

Prime Factor Structure

Factorization String 2 × 3 × 5 × 11 × 661

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Total Divisors 32

Divisor Sum (σ) 571,968

Proper Divisor Sum 353,838

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #218117 ← → #218131

1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 661 1,322 1,983 3,305 3,966 6,610 7,271 9,915 14,542 19,830 21,813 36,355 43,626 72,710 109,065 218,130

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

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