λ
Sigma Notebook

263,991

3 × 7 × 13 × 967
Deficient Odd Composite

263,991 is odd and not a perfect square. Its factorization is 3 × 7 × 13 × 967 and its 16 divisors sum to 433,664.

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Prime Factor Structure

Factorization String 3 × 7 × 13 × 967
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 433,664
Proper Divisor Sum 169,673
Digit Sum / Digital Root 30 (Root: 3)
Adjacent Primes #263983 ← → #264007

Radix Representation

Decimal 263991
Binary 1000000011100110111 (19 bits)
Octal 0o1003467
Hexadecimal 0x40737

Divisor Catalog (5 of 16)

1 3 7 13 21

Collatz Trajectory (70 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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