129,261
3 × 11 × 3917
Deficient
Odd
Composite
Starting at 129,261, the Collatz iteration reaches 1 after 74 steps. The first transition is 387784; the starting value is odd with 8 positive divisors.
Prime Factor Structure
Factorization String
3 × 11 × 3917
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
188,064
Proper Divisor Sum
58,803
Digit Sum / Digital Root
21 (Root: 3)
Radix Representation
| Decimal | 129261 |
| Binary | 11111100011101101 (17 bits) |
| Octal | 0o374355 |
| Hexadecimal | 0x1F8ED |
Divisor Catalog (8)
Collatz Trajectory (74 steps to reach 1)
Iterative sequence n → n/2 (if even) or 3n+1 (if odd):
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