λ
Sequence Observatory

1,021,309

17 × 60077
Deficient Odd Composite

Starting at 1,021,309, the Collatz iteration reaches 1 after 103 steps. The first transition is 3063928; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 17 × 60077
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,081,404
Proper Divisor Sum 60,095
Digit Sum / Digital Root 16 (Root: 7)
Adjacent Primes #1021303 ← → #1021327

Radix Representation

Decimal 1021309
Binary 11111001010101111101 (20 bits)
Octal 0o3712575
Hexadecimal 0xF957D

Divisor Catalog (4)

Collatz Trajectory (103 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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