λ
Ratio Atlas

20,005,003

20005003
Deficient Odd Prime

20,005,003 factors as 20005003. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 190 steps.

Prime Factor Structure

Factorization String 20005003
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 20,005,004
Proper Divisor Sum 1
Digit Sum / Digital Root 10 (Root: 1)
Adjacent Primes #20004997 ← → #20005021

Radix Representation

Decimal 20005003
Binary 1001100010100000010001011 (25 bits)
Octal 0o114240213
Hexadecimal 0x131408B

Divisor Catalog (2)

Collatz Trajectory (190 steps to reach 1)

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

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