λ
Sigma Notebook

9,841,621

991 × 9931
Deficient Odd Composite

9,841,621 is odd and not a perfect square. Its factorization is 991 × 9931 and its 4 divisors sum to 9,852,544.

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Prime Factor Structure

Factorization String 991 × 9931
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 9,852,544
Proper Divisor Sum 10,923
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #9841619 ← → #9841627

Radix Representation

Decimal 9841621
Binary 100101100010101111010101 (24 bits)
Octal 0o45425725
Hexadecimal 0x962BD5

Divisor Catalog (4)

1 991 9,931 9,841,621

Collatz Trajectory (176 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.

9,841,621 29,524,864 14,762,432 7,381,216 3,690,608

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