λ
Sigma Notebook

8,171,665

5 × 1634333
Deficient Odd Composite

8,171,665 is odd and not a perfect square. Its factorization is 5 × 1634333 and its 4 divisors sum to 9,806,004.

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Prime Factor Structure

Factorization String 5 × 1634333
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 9,806,004
Proper Divisor Sum 1,634,339
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #8171659 ← → #8171687

Radix Representation

Decimal 8171665
Binary 11111001011000010010001 (23 bits)
Octal 0o37130221
Hexadecimal 0x7CB091

Divisor Catalog (4)

1 5 1,634,333 8,171,665

Collatz Trajectory (186 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.

8,171,665 24,514,996 12,257,498 6,128,749 18,386,248

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