λ
Ratio Atlas

1,987,099

1987099
Deficient Odd Prime

1,987,099 factors as 1987099. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 122 steps.

Prime Factor Structure

Factorization String 1987099
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 1,987,100
Proper Divisor Sum 1
Digit Sum / Digital Root 43 (Root: 7)
Adjacent Primes #1987091 ← → #1987121

Radix Representation

Decimal 1987099
Binary 111100101001000011011 (21 bits)
Octal 0o7451033
Hexadecimal 0x1E521B

Divisor Catalog (2)

Collatz Trajectory (122 steps to reach 1)

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

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