λ
Ratio Atlas

684,889

684889
Deficient Odd Prime

Prime Factor Structure

Factorization String 684889
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 684,890
Proper Divisor Sum 1
Digit Sum / Digital Root 43 (Root: 7)
Adjacent Primes #684869 ← → #684923

Radix Representation

Decimal 684889
Binary 10100111001101011001 (20 bits)
Octal 0o2471531
Hexadecimal 0xA7359

Divisor Catalog (2)

Collatz Trajectory (53 steps to reach 1)

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

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