λ
Sequence Observatory

674,272

25 × 19 × 1109
Abundant Even Composite

Starting at 674,272, the Collatz iteration reaches 1 after 198 steps. The first transition is 337136; the starting value is even with 24 positive divisors.

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Prime Factor Structure

Factorization String 2^5 × 19 × 1109
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 1,398,600
Proper Divisor Sum 724,328
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #674269 ← → #674273

Radix Representation

Decimal 674272
Binary 10100100100111100000 (20 bits)
Octal 0o2444740
Hexadecimal 0xA49E0

Divisor Catalog (5 of 24)

1 2 4 8 16

Collatz Trajectory (198 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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