λ
Ratio Atlas

648,989

11 × 41 × 1439
Deficient Odd Composite

648,989 factors as 11 × 41 × 1439. Its 8 positive divisors give a proper-divisor sum of 76,771, so this integer is deficient. The Collatz stopping time is 66 steps.

Prime Factor Structure

Factorization String 11 × 41 × 1439
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 725,760
Proper Divisor Sum 76,771
Digit Sum / Digital Root 44 (Root: 8)
Adjacent Primes #648971 ← → #648997

Radix Representation

Decimal 648989
Binary 10011110011100011101 (20 bits)
Octal 0o2363435
Hexadecimal 0x9E71D

Divisor Catalog (8)

Collatz Trajectory (66 steps to reach 1)

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

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