λ
Sequence Observatory

2,385,850

2 × 52 × 47717
Deficient Even Composite

Starting at 2,385,850, the Collatz iteration reaches 1 after 99 steps. The first transition is 1192925; the starting value is even with 12 positive divisors.

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Prime Factor Structure

Factorization String 2 × 5^2 × 47717
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 4,437,774
Proper Divisor Sum 2,051,924
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #2385847 ← → #2385857

Radix Representation

Decimal 2385850
Binary 1001000110011110111010 (22 bits)
Octal 0o11063672
Hexadecimal 0x2467BA

Divisor Catalog (5 of 12)

1 2 5 10 25

Collatz Trajectory (99 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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