λ
Ratio Atlas
21,878
2 × 10939
Deficient Even Composite

Prime Factor Structure

Factorization String 2 × 10939
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 32,820
Proper Divisor Sum 10,942
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #21871 ← → #21881

Radix Representation

Decimal 21878
Binary 101010101110110 (15 bits)
Octal 0o52566
Hexadecimal 0x5576

Divisor Catalog (4)

Collatz Trajectory (100 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 #21,877 Browse Full Index Next Integer #21,879 →