λ
Ratio Atlas

665,180

22 × 5 × 79 × 421
Abundant Even Composite

Prime Factor Structure

Factorization String 2^2 × 5 × 79 × 421
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 1,417,920
Proper Divisor Sum 752,740
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #665179 ← → #665201

Radix Representation

Decimal 665180
Binary 10100010011001011100 (20 bits)
Octal 0o2423134
Hexadecimal 0xA265C

Divisor Catalog (24)

Collatz Trajectory (154 steps to reach 1)

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

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