λ
Sequence Observatory

7,515,023

2557 × 2939
Deficient Odd Composite

Starting at 7,515,023, the Collatz iteration reaches 1 after 248 steps. The first transition is 22545070; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 2557 × 2939
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 7,520,520
Proper Divisor Sum 5,497
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #7515019 ← → #7515041

Radix Representation

Decimal 7515023
Binary 11100101010101110001111 (23 bits)
Octal 0o34525617
Hexadecimal 0x72AB8F

Divisor Catalog (4)

Collatz Trajectory (248 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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