λ
Ratio Atlas
21,397,572
22 × 32 × 7 × 19 × 41 × 109
Abundant Even Composite

Prime Factor Structure

Factorization String 2^2 × 3^2 × 7 × 19 × 41 × 109
Distinct Prime Factors 6
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 144
Divisor Sum (σ) 67,267,200
Proper Divisor Sum 45,869,628
Digit Sum / Digital Root 36 (Root: 9)
Adjacent Primes #21397559 ← → #21397573

Radix Representation

Decimal 21397572
Binary 1010001101000000001000100 (25 bits)
Octal 0o121500104
Hexadecimal 0x1468044

Divisor Catalog (60 of 144)

Collatz Trajectory (71 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 #21,397,571 Browse Full Index Next Integer #21,397,573 →