λ
Sigma Notebook

6,978,553

251 × 27803
Deficient Odd Composite

6,978,553 is odd and not a perfect square. Its factorization is 251 × 27803 and its 4 divisors sum to 7,006,608.

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Prime Factor Structure

Factorization String 251 × 27803
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 7,006,608
Proper Divisor Sum 28,055
Digit Sum / Digital Root 43 (Root: 7)
Adjacent Primes #6978547 ← → #6978593

Radix Representation

Decimal 6978553
Binary 11010100111101111111001 (23 bits)
Octal 0o32475771
Hexadecimal 0x6A7BF9

Divisor Catalog (4)

Collatz Trajectory (253 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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