λ
Math Directory

4,188,665

5 × 132 × 4957
Deficient Odd Composite

4,188,665 factors as 5 × 13^2 × 4957. Its 12 positive divisors give a proper-divisor sum of 1,255,219, so this integer is deficient. The Collatz stopping time is 136 steps.

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Prime Factor Structure

Factorization String 5 × 13^2 × 4957
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 5,443,884
Proper Divisor Sum 1,255,219
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #4188649 ← → #4188671

Radix Representation

Decimal 4188665
Binary 1111111110100111111001 (22 bits)
Octal 0o17764771
Hexadecimal 0x3FE9F9

Divisor Catalog (5 of 12)

1 5 13 65 169

Collatz Trajectory (136 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.

4,188,665 12,565,996 6,282,998 3,141,499 9,424,498

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