λ
Sequence Observatory

125,908

22 × 31477
Deficient Even Composite

Starting at 125,908, the Collatz iteration reaches 1 after 105 steps. The first transition is 62954; the starting value is even with 6 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 31477
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 6
Divisor Sum (σ) 220,346
Proper Divisor Sum 94,438
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #125899 ← → #125921

Radix Representation

Decimal 125908
Binary 11110101111010100 (17 bits)
Octal 0o365724
Hexadecimal 0x1EBD4

Divisor Catalog (6)

Collatz Trajectory (105 steps to reach 1)

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

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