λ
Sequence Observatory

8,387,625

3 × 53 × 22367
Deficient Odd Composite

Starting at 8,387,625, the Collatz iteration reaches 1 after 199 steps. The first transition is 25162876; the starting value is odd with 16 positive divisors.

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Prime Factor Structure

Factorization String 3 × 5^3 × 22367
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 13,957,632
Proper Divisor Sum 5,570,007
Digit Sum / Digital Root 39 (Root: 3)
Adjacent Primes #8387611 ← → #8387671

Radix Representation

Decimal 8387625
Binary 11111111111110000101001 (23 bits)
Octal 0o37776051
Hexadecimal 0x7FFC29

Divisor Catalog (5 of 16)

1 3 5 15 25

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.

8,387,625 25,162,876 12,581,438 6,290,719 18,872,158

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