λ
Ratio Atlas

209,906

2 × 104953
Deficient Even Composite

Prime Factor Structure

Factorization String 2 × 104953
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 314,862
Proper Divisor Sum 104,956
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #209887 ← → #209917

Radix Representation

Decimal 209906
Binary 110011001111110010 (18 bits)
Octal 0o631762
Hexadecimal 0x333F2

Divisor Catalog (4)

Collatz Trajectory (155 steps to reach 1)

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

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