λ
Ratio Atlas

18,591,808

26 × 290497
Deficient Even Composite

18,591,808 factors as 2^6 × 290497. Its 14 positive divisors give a proper-divisor sum of 18,301,438, so this integer is deficient. The Collatz stopping time is 195 steps.

Prime Factor Structure

Factorization String 2^6 × 290497
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 14
Divisor Sum (σ) 36,893,246
Proper Divisor Sum 18,301,438
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #18591799 ← → #18591841

Radix Representation

Decimal 18591808
Binary 1000110111011000001000000 (25 bits)
Octal 0o106730100
Hexadecimal 0x11BB040

Divisor Catalog (14)

Collatz Trajectory (195 steps to reach 1)

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

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