λ
Ratio Atlas
20,891
13 × 1607
Deficient Odd Composite

Prime Factor Structure

Factorization String 13 × 1607
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 22,512
Proper Divisor Sum 1,621
Digit Sum / Digital Root 20 (Root: 2)
Adjacent Primes #20887 ← → #20897

Radix Representation

Decimal 20891
Binary 101000110011011 (15 bits)
Octal 0o50633
Hexadecimal 0x519B

Divisor Catalog (4)

Collatz Trajectory (61 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.

← Previous Integer #20,890 Browse Full Index Next Integer #20,892 →