λ
Ratio Atlas

12,831,781

12831781
Deficient Odd Prime

12,831,781 factors as 12831781. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 241 steps.

Prime Factor Structure

Factorization String 12831781
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 12,831,782
Proper Divisor Sum 1
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #12831757 ← → #12831809

Radix Representation

Decimal 12831781
Binary 110000111100110000100101 (24 bits)
Octal 0o60746045
Hexadecimal 0xC3CC25

Divisor Catalog (2)

Collatz Trajectory (241 steps to reach 1)

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

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