λ
Sequence Observatory

8,566,739

19 × 450881
Deficient Odd Composite

Starting at 8,566,739, the Collatz iteration reaches 1 after 349 steps. The first transition is 25700218; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 19 × 450881
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 9,017,640
Proper Divisor Sum 450,901
Digit Sum / Digital Root 44 (Root: 8)
Adjacent Primes #8566729 ← → #8566771

Radix Representation

Decimal 8566739
Binary 100000101011011111010011 (24 bits)
Octal 0o40533723
Hexadecimal 0x82B7D3

Divisor Catalog (4)

Collatz Trajectory (349 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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