λ
Ratio Atlas

217,940

22 × 5 × 17 × 641
Abundant Even Composite

Prime Factor Structure

Factorization String 2^2 × 5 × 17 × 641
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 485,352
Proper Divisor Sum 267,412
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #217937 ← → #217969

Radix Representation

Decimal 217940
Binary 110101001101010100 (18 bits)
Octal 0o651524
Hexadecimal 0x35354

Divisor Catalog (24)

Collatz Trajectory (67 steps to reach 1)

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

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