λ
Sequence Observatory

1,377,323

17 × 81019
Deficient Odd Composite

Starting at 1,377,323, the Collatz iteration reaches 1 after 199 steps. The first transition is 4131970; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 17 × 81019
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,458,360
Proper Divisor Sum 81,037
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #1377317 ← → #1377347

Radix Representation

Decimal 1377323
Binary 101010000010000101011 (21 bits)
Octal 0o5202053
Hexadecimal 0x15042B

Divisor Catalog (4)

Collatz Trajectory (199 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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