λ
Sigma Notebook

2,173,925

52 × 13 × 6689
Deficient Odd Composite

2,173,925 is odd and not a perfect square. Its factorization is 5^2 × 13 × 6689 and its 12 divisors sum to 2,903,460.

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Prime Factor Structure

Factorization String 5^2 × 13 × 6689
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 2,903,460
Proper Divisor Sum 729,535
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #2173907 ← → #2173957

Radix Representation

Decimal 2173925
Binary 1000010010101111100101 (22 bits)
Octal 0o10225745
Hexadecimal 0x212BE5

Divisor Catalog (5 of 12)

1 5 13 25 65

Collatz Trajectory (117 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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