λ
Sequence Observatory

3,873,897

32 × 430433
Deficient Odd Composite

Starting at 3,873,897, the Collatz iteration reaches 1 after 340 steps. The first transition is 11621692; the starting value is odd with 6 positive divisors.

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Prime Factor Structure

Factorization String 3^2 × 430433
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 6
Divisor Sum (σ) 5,595,642
Proper Divisor Sum 1,721,745
Digit Sum / Digital Root 45 (Root: 9)
Adjacent Primes #3873893 ← → #3873901

Radix Representation

Decimal 3873897
Binary 1110110001110001101001 (22 bits)
Octal 0o16616151
Hexadecimal 0x3B1C69

Divisor Catalog (5 of 6)

Collatz Trajectory (340 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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