λ
Ratio Atlas
81,820
22 × 5 × 4091
Abundant Even Composite

Prime Factor Structure

Factorization String 2^2 × 5 × 4091
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 171,864
Proper Divisor Sum 90,044
Digit Sum / Digital Root 19 (Root: 1)
Adjacent Primes #81817 ← → #81839

Radix Representation

Decimal 81820
Binary 10011111110011100 (17 bits)
Octal 0o237634
Hexadecimal 0x13F9C

Divisor Catalog (12)

Collatz Trajectory (37 steps to reach 1)

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

Active Feeder Network

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.

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