λ
Sigma Notebook

2,956,213

13 × 23 × 9887
Deficient Odd Composite

2,956,213 is odd and not a perfect square. Its factorization is 13 × 23 × 9887 and its 8 divisors sum to 3,322,368.

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Prime Factor Structure

Factorization String 13 × 23 × 9887
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 3,322,368
Proper Divisor Sum 366,155
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #2956201 ← → #2956237

Radix Representation

Decimal 2956213
Binary 1011010001101110110101 (22 bits)
Octal 0o13215665
Hexadecimal 0x2D1BB5

Divisor Catalog (5 of 8)

Collatz Trajectory (213 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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