λ
Sequence Observatory

502,669

502669
Deficient Odd Prime

Starting at 502,669, the Collatz iteration reaches 1 after 89 steps. The first transition is 1508008; the starting value is odd with 2 positive divisors.

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Prime Factor Structure

Factorization String 502669
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 502,670
Proper Divisor Sum 1
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #502651 ← → #502687

Radix Representation

Decimal 502669
Binary 1111010101110001101 (19 bits)
Octal 0o1725615
Hexadecimal 0x7AB8D

Divisor Catalog (2)

Collatz Trajectory (89 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.

502,669 1,508,008 754,004 377,002 188,501

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