λ
Ratio Atlas

1,390,656

26 × 3 × 7243
Abundant Even Composite

Prime Factor Structure

Factorization String 2^6 × 3 × 7243
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 28
Divisor Sum (σ) 3,679,952
Proper Divisor Sum 2,289,296
Digit Sum / Digital Root 30 (Root: 3)
Adjacent Primes #1390643 ← → #1390681

Radix Representation

Decimal 1390656
Binary 101010011100001000000 (21 bits)
Octal 0o5234100
Hexadecimal 0x153840

Divisor Catalog (28)

Collatz Trajectory (106 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

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