λ
Sequence Observatory

9,887,988

22 × 3 × 11 × 173 × 433
Abundant Even Composite

Starting at 9,887,988, the Collatz iteration reaches 1 after 88 steps. The first transition is 4943994; the starting value is even with 48 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 3 × 11 × 173 × 433
Distinct Prime Factors 5
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 48
Divisor Sum (σ) 25,373,376
Proper Divisor Sum 15,485,388
Digit Sum / Digital Root 57 (Root: 3)
Adjacent Primes #9887971 ← → #9887993

Radix Representation

Decimal 9887988
Binary 100101101110000011110100 (24 bits)
Octal 0o45560364
Hexadecimal 0x96E0F4

Divisor Catalog (48)

Collatz Trajectory (88 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

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