λ
Ratio Atlas

18,771,371

18771371
Deficient Odd Prime

18,771,371 factors as 18771371. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 177 steps.

Prime Factor Structure

Factorization String 18771371
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 18,771,372
Proper Divisor Sum 1
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #18771353 ← → #18771407

Radix Representation

Decimal 18771371
Binary 1000111100110110110101011 (25 bits)
Octal 0o107466653
Hexadecimal 0x11E6DAB

Divisor Catalog (2)

Collatz Trajectory (177 steps to reach 1)

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

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