λ
Sequence Observatory

6,994,989

32 × 777221
Deficient Odd Composite

Starting at 6,994,989, the Collatz iteration reaches 1 after 129 steps. The first transition is 20984968; the starting value is odd with 6 positive divisors.

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Prime Factor Structure

Factorization String 3^2 × 777221
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 6
Divisor Sum (σ) 10,103,886
Proper Divisor Sum 3,108,897
Digit Sum / Digital Root 54 (Root: 9)
Adjacent Primes #6994987 ← → #6994997

Radix Representation

Decimal 6994989
Binary 11010101011110000101101 (23 bits)
Octal 0o32536055
Hexadecimal 0x6ABC2D

Divisor Catalog (5 of 6)

Collatz Trajectory (129 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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