λ
Sigma Notebook

810,649

7 × 115807
Deficient Odd Composite

810,649 is odd and not a perfect square. Its factorization is 7 × 115807 and its 4 divisors sum to 926,464.

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Prime Factor Structure

Factorization String 7 × 115807
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 926,464
Proper Divisor Sum 115,815
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #810643 ← → #810653

Radix Representation

Decimal 810649
Binary 11000101111010011001 (20 bits)
Octal 0o3057231
Hexadecimal 0xC5E99

Divisor Catalog (4)

1 7 115,807 810,649

Collatz Trajectory (144 steps to reach 1)

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

Showing the first 5 trajectory entries; the stopping-time total above is unchanged.

810,649 2,431,948 1,215,974 607,987 1,823,962

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