λ
Ratio Atlas

690,648

23 × 3 × 7 × 4111
Abundant Even Composite

Prime Factor Structure

Factorization String 2^3 × 3 × 7 × 4111
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 32
Divisor Sum (σ) 1,973,760
Proper Divisor Sum 1,283,112
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #690629 ← → #690661

Radix Representation

Decimal 690648
Binary 10101000100111011000 (20 bits)
Octal 0o2504730
Hexadecimal 0xA89D8

Divisor Catalog (32)

Collatz Trajectory (167 steps to reach 1)

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

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