λ
Sequence Observatory

8,438,677

133 × 23 × 167
Deficient Odd Composite

Starting at 8,438,677, the Collatz iteration reaches 1 after 199 steps. The first transition is 25316032; the starting value is odd with 16 positive divisors.

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Prime Factor Structure

Factorization String 13^3 × 23 × 167
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 9,596,160
Proper Divisor Sum 1,157,483
Digit Sum / Digital Root 43 (Root: 7)
Adjacent Primes #8438663 ← → #8438699

Radix Representation

Decimal 8438677
Binary 100000001100001110010101 (24 bits)
Octal 0o40141625
Hexadecimal 0x80C395

Divisor Catalog (5 of 16)

Collatz Trajectory (199 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.

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