λ
Sequence Observatory

4,039,917

3 × 7 × 192377
Deficient Odd Composite

Starting at 4,039,917, the Collatz iteration reaches 1 after 229 steps. The first transition is 12119752; the starting value is odd with 8 positive divisors.

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Prime Factor Structure

Factorization String 3 × 7 × 192377
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 6,156,096
Proper Divisor Sum 2,116,179
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #4039901 ← → #4039949

Radix Representation

Decimal 4039917
Binary 1111011010010011101101 (22 bits)
Octal 0o17322355
Hexadecimal 0x3DA4ED

Divisor Catalog (5 of 8)

Collatz Trajectory (229 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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