λ
Ratio Atlas

870,641

870641
Deficient Odd Prime

870,641 factors as 870641. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 43 steps.

Prime Factor Structure

Factorization String 870641
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 870,642
Proper Divisor Sum 1
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #870629 ← → #870643

Radix Representation

Decimal 870641
Binary 11010100100011110001 (20 bits)
Octal 0o3244361
Hexadecimal 0xD48F1

Divisor Catalog (2)

Collatz Trajectory (43 steps to reach 1)

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

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