λ
Ratio Atlas

1,291,111

1291111
Deficient Odd Prime

Prime Factor Structure

Factorization String 1291111
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 1,291,112
Proper Divisor Sum 1
Digit Sum / Digital Root 16 (Root: 7)
Adjacent Primes #1291079 ← → #1291117

Radix Representation

Decimal 1291111
Binary 100111011001101100111 (21 bits)
Octal 0o4731547
Hexadecimal 0x13B367

Divisor Catalog (2)

Collatz Trajectory (248 steps to reach 1)

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

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