λ
Ratio Atlas

17,818,211

31 × 43 × 13367
Deficient Odd Composite

17,818,211 factors as 31 × 43 × 13367. Its 8 positive divisors give a proper-divisor sum of 1,003,933, so this integer is deficient. The Collatz stopping time is 195 steps.

Prime Factor Structure

Factorization String 31 × 43 × 13367
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 18,822,144
Proper Divisor Sum 1,003,933
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #17818189 ← → #17818243

Radix Representation

Decimal 17818211
Binary 1000011111110001001100011 (25 bits)
Octal 0o103761143
Hexadecimal 0x10FE263

Divisor Catalog (8)

Collatz Trajectory (195 steps to reach 1)

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

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