λ
Ratio Atlas

646,189

646189
Deficient Odd Prime

Prime Factor Structure

Factorization String 646189
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 646,190
Proper Divisor Sum 1
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #646183 ← → #646193

Radix Representation

Decimal 646189
Binary 10011101110000101101 (20 bits)
Octal 0o2356055
Hexadecimal 0x9DC2D

Divisor Catalog (2)

Collatz Trajectory (172 steps to reach 1)

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

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