λ
Ratio Atlas

16,615,399

16615399
Deficient Odd Prime

16,615,399 factors as 16615399. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 161 steps.

Prime Factor Structure

Factorization String 16615399
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 16,615,400
Proper Divisor Sum 1
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #16615387 ← → #16615429

Radix Representation

Decimal 16615399
Binary 111111011000011111100111 (24 bits)
Octal 0o77303747
Hexadecimal 0xFD87E7

Divisor Catalog (2)

Collatz Trajectory (161 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

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