λ
Prime Ledger

1,809,391

1809391
Deficient Odd Prime

1,809,391 has the prime decomposition 1809391. Its 1 distinct prime factor produce 2 positive divisors.

Prime Factor Structure

Factorization String 1809391
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 1,809,392
Proper Divisor Sum 1
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #1809383 ← → #1809403

Radix Representation

Decimal 1809391
Binary 110111001101111101111 (21 bits)
Octal 0o6715757
Hexadecimal 0x1B9BEF

Divisor Catalog (2)

Collatz Trajectory (140 steps to reach 1)

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

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