λ
Sequence Observatory

1,685,183

103 × 16361
Deficient Odd Composite

Starting at 1,685,183, the Collatz iteration reaches 1 after 207 steps. The first transition is 5055550; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 103 × 16361
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,701,648
Proper Divisor Sum 16,465
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #1685179 ← → #1685207

Radix Representation

Decimal 1685183
Binary 110011011011010111111 (21 bits)
Octal 0o6333277
Hexadecimal 0x19B6BF

Divisor Catalog (4)

Collatz Trajectory (207 steps to reach 1)

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

Showing the first 5 trajectory entries; the stopping-time total above is unchanged.

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