λ
Sequence Observatory

3,006,668

22 × 7 × 167 × 643
Abundant Even Composite

Starting at 3,006,668, the Collatz iteration reaches 1 after 138 steps. The first transition is 1503334; the starting value is even with 24 positive divisors.

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Prime Factor Structure

Factorization String 2^2 × 7 × 167 × 643
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 6,058,752
Proper Divisor Sum 3,052,084
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #3006667 ← → #3006677

Radix Representation

Decimal 3006668
Binary 1011011110000011001100 (22 bits)
Octal 0o13360314
Hexadecimal 0x2DE0CC

Divisor Catalog (5 of 24)

1 2 4 7 14

Collatz Trajectory (138 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.

3,006,668 1,503,334 751,667 2,255,002 1,127,501

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