λ
Sequence Observatory

3,825,325

52 × 7 × 21859
Deficient Odd Composite

Starting at 3,825,325, the Collatz iteration reaches 1 after 203 steps. The first transition is 11475976; the starting value is odd with 12 positive divisors.

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Prime Factor Structure

Factorization String 5^2 × 7 × 21859
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 5,421,280
Proper Divisor Sum 1,595,955
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #3825313 ← → #3825329

Radix Representation

Decimal 3825325
Binary 1110100101111010101101 (22 bits)
Octal 0o16457255
Hexadecimal 0x3A5EAD

Divisor Catalog (5 of 12)

1 5 7 25 35

Collatz Trajectory (203 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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