λ
Ratio Atlas

2,205,658

2 × 7 × 13 × 12119
Deficient Even Composite

2,205,658 factors as 2 × 7 × 13 × 12119. Its 16 positive divisors give a proper-divisor sum of 1,866,662, so this integer is deficient. The Collatz stopping time is 148 steps.

Prime Factor Structure

Factorization String 2 × 7 × 13 × 12119
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 4,072,320
Proper Divisor Sum 1,866,662
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #2205649 ← → #2205659

Radix Representation

Decimal 2205658
Binary 1000011010011111011010 (22 bits)
Octal 0o10323732
Hexadecimal 0x21A7DA

Divisor Catalog (16)

Collatz Trajectory (148 steps to reach 1)

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

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