λ
Sequence Observatory

4,298,143

4298143
Deficient Odd Prime

Starting at 4,298,143, the Collatz iteration reaches 1 after 123 steps. The first transition is 12894430; the starting value is odd with 2 positive divisors.

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Prime Factor Structure

Factorization String 4298143
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 4,298,144
Proper Divisor Sum 1
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #4298137 ← → #4298149

Radix Representation

Decimal 4298143
Binary 10000011001010110011111 (23 bits)
Octal 0o20312637
Hexadecimal 0x41959F

Divisor Catalog (2)

Collatz Trajectory (123 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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