λ
Sequence Observatory

5,736,401

11 × 521491
Deficient Odd Composite

Starting at 5,736,401, the Collatz iteration reaches 1 after 139 steps. The first transition is 17209204; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 11 × 521491
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 6,257,904
Proper Divisor Sum 521,503
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #5736371 ← → #5736431

Radix Representation

Decimal 5736401
Binary 10101111000011111010001 (23 bits)
Octal 0o25703721
Hexadecimal 0x5787D1

Divisor Catalog (4)

Collatz Trajectory (139 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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