λ
Ratio Atlas

1,679,899

13 × 129223
Deficient Odd Composite

1,679,899 factors as 13 × 129223. Its 4 positive divisors give a proper-divisor sum of 129,237, so this integer is deficient. The Collatz stopping time is 145 steps.

Prime Factor Structure

Factorization String 13 × 129223
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,809,136
Proper Divisor Sum 129,237
Digit Sum / Digital Root 49 (Root: 4)
Adjacent Primes #1679863 ← → #1679903

Radix Representation

Decimal 1679899
Binary 110011010001000011011 (21 bits)
Octal 0o6321033
Hexadecimal 0x19A21B

Divisor Catalog (4)

Collatz Trajectory (145 steps to reach 1)

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

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