λ
Sequence Observatory

9,921,386

2 × 4960693
Deficient Even Composite

Starting at 9,921,386, the Collatz iteration reaches 1 after 114 steps. The first transition is 4960693; the starting value is even with 4 positive divisors.

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Prime Factor Structure

Factorization String 2 × 4960693
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 14,882,082
Proper Divisor Sum 4,960,696
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #9921383 ← → #9921391

Radix Representation

Decimal 9921386
Binary 100101110110001101101010 (24 bits)
Octal 0o45661552
Hexadecimal 0x97636A

Divisor Catalog (4)

Collatz Trajectory (114 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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