λ
Ratio Atlas

17,510,921

17510921
Deficient Odd Prime

17,510,921 factors as 17510921. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 138 steps.

Prime Factor Structure

Factorization String 17510921
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 17,510,922
Proper Divisor Sum 1
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #17510917 ← → #17510923

Radix Representation

Decimal 17510921
Binary 1000010110011001000001001 (25 bits)
Octal 0o102631011
Hexadecimal 0x10B3209

Divisor Catalog (2)

Collatz Trajectory (138 steps to reach 1)

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

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