λ
Sequence Observatory

4,280,963

107 × 40009
Deficient Odd Composite

Starting at 4,280,963, the Collatz iteration reaches 1 after 123 steps. The first transition is 12842890; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 107 × 40009
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 4,321,080
Proper Divisor Sum 40,117
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #4280959 ← → #4280971

Radix Representation

Decimal 4280963
Binary 10000010101001010000011 (23 bits)
Octal 0o20251203
Hexadecimal 0x415283

Divisor Catalog (4)

Collatz Trajectory (123 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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