λ
Sequence Observatory

231,761

17 × 13633
Deficient Odd Composite

Starting at 231,761, the Collatz iteration reaches 1 after 106 steps. The first transition is 695284; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 17 × 13633
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 245,412
Proper Divisor Sum 13,651
Digit Sum / Digital Root 20 (Root: 2)
Adjacent Primes #231719 ← → #231779

Radix Representation

Decimal 231761
Binary 111000100101010001 (18 bits)
Octal 0o704521
Hexadecimal 0x38951

Divisor Catalog (4)

Collatz Trajectory (106 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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