λ
Ratio Atlas

521,041

521041
Deficient Odd Prime

521,041 factors as 521041. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 226 steps.

Prime Factor Structure

Factorization String 521041
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 521,042
Proper Divisor Sum 1
Digit Sum / Digital Root 13 (Root: 4)
Adjacent Primes #521039 ← → #521047

Radix Representation

Decimal 521041
Binary 1111111001101010001 (19 bits)
Octal 0o1771521
Hexadecimal 0x7F351

Divisor Catalog (2)

Collatz Trajectory (226 steps to reach 1)

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

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