λ
Ratio Atlas

28,126,187

28126187
Deficient Odd Prime

28,126,187 factors as 28126187. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 131 steps.

Prime Factor Structure

Factorization String 28126187
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 28,126,188
Proper Divisor Sum 1
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #28126183 ← → #28126229

Radix Representation

Decimal 28126187
Binary 1101011010010101111101011 (25 bits)
Octal 0o153225753
Hexadecimal 0x1AD2BEB

Divisor Catalog (2)

Collatz Trajectory (131 steps to reach 1)

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

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