λ
Ratio Atlas
216,561
3 × 37 × 1951
Deficient Odd Composite

Prime Factor Structure

Factorization String 3 × 37 × 1951
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 296,704
Proper Divisor Sum 80,143
Digit Sum / Digital Root 21 (Root: 3)
Adjacent Primes #216553 ← → #216569

Radix Representation

Decimal 216561
Binary 110100110111110001 (18 bits)
Octal 0o646761
Hexadecimal 0x34DF1

Divisor Catalog (8)

Collatz Trajectory (155 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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