λ
Ratio Atlas
21,390,556
22 × 11 × 17 × 28597
Abundant Even Composite

Prime Factor Structure

Factorization String 2^2 × 11 × 17 × 28597
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 43,240,176
Proper Divisor Sum 21,849,620
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #21390553 ← → #21390557

Radix Representation

Decimal 21390556
Binary 1010001100110010011011100 (25 bits)
Octal 0o121462334
Hexadecimal 0x14664DC

Divisor Catalog (24)

Collatz Trajectory (265 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 #21,390,555 Browse Full Index Next Integer #21,390,557 →