λ
Sequence Observatory

7,166,717

359 × 19963
Deficient Odd Composite

Starting at 7,166,717, the Collatz iteration reaches 1 after 266 steps. The first transition is 21500152; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 359 × 19963
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 7,187,040
Proper Divisor Sum 20,323
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #7166699 ← → #7166729

Radix Representation

Decimal 7166717
Binary 11011010101101011111101 (23 bits)
Octal 0o33255375
Hexadecimal 0x6D5AFD

Divisor Catalog (4)

Collatz Trajectory (266 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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