λ
Sequence Observatory

6,406,189

79 × 83 × 977
Deficient Odd Composite

Starting at 6,406,189, the Collatz iteration reaches 1 after 121 steps. The first transition is 19218568; the starting value is odd with 8 positive divisors.

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Prime Factor Structure

Factorization String 79 × 83 × 977
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 6,572,160
Proper Divisor Sum 165,971
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #6406177 ← → #6406193

Radix Representation

Decimal 6406189
Binary 11000011100000000101101 (23 bits)
Octal 0o30340055
Hexadecimal 0x61C02D

Divisor Catalog (5 of 8)

Collatz Trajectory (121 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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