λ
Sequence Observatory

3,128,499

32 × 11 × 31601
Deficient Odd Composite

Starting at 3,128,499, the Collatz iteration reaches 1 after 133 steps. The first transition is 9385498; the starting value is odd with 12 positive divisors.

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Prime Factor Structure

Factorization String 3^2 × 11 × 31601
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 4,929,912
Proper Divisor Sum 1,801,413
Digit Sum / Digital Root 36 (Root: 9)
Adjacent Primes #3128453 ← → #3128501

Radix Representation

Decimal 3128499
Binary 1011111011110010110011 (22 bits)
Octal 0o13736263
Hexadecimal 0x2FBCB3

Divisor Catalog (5 of 12)

1 3 9 11 33

Collatz Trajectory (133 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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