λ
Ratio Atlas

28,295,989

28295989
Deficient Odd Prime

28,295,989 factors as 28295989. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 162 steps.

Prime Factor Structure

Factorization String 28295989
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 28,295,990
Proper Divisor Sum 1
Digit Sum / Digital Root 52 (Root: 7)
Adjacent Primes #28295977 ← → #28296019

Radix Representation

Decimal 28295989
Binary 1101011111100001100110101 (25 bits)
Octal 0o153741465
Hexadecimal 0x1AFC335

Divisor Catalog (2)

Collatz Trajectory (162 steps to reach 1)

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

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