λ
Ratio Atlas

8,720,171

8720171
Deficient Odd Prime

8,720,171 factors as 8720171. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 106 steps.

Prime Factor Structure

Factorization String 8720171
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 8,720,172
Proper Divisor Sum 1
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #8720161 ← → #8720177

Radix Representation

Decimal 8720171
Binary 100001010000111100101011 (24 bits)
Octal 0o41207453
Hexadecimal 0x850F2B

Divisor Catalog (2)

Collatz Trajectory (106 steps to reach 1)

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

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