λ
Sequence Observatory

6,415,297

7 × 916471
Deficient Odd Composite

Starting at 6,415,297, the Collatz iteration reaches 1 after 72 steps. The first transition is 19245892; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 7 × 916471
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 7,331,776
Proper Divisor Sum 916,479
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #6415291 ← → #6415301

Radix Representation

Decimal 6415297
Binary 11000011110001111000001 (23 bits)
Octal 0o30361701
Hexadecimal 0x61E3C1

Divisor Catalog (4)

Collatz Trajectory (72 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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