1,221,266
2 × 610633
Deficient
Even
Composite
Starting at 1,221,266, the Collatz iteration reaches 1 after 59 steps. The first transition is 610633; the starting value is even with 4 positive divisors.
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Prime Factor Structure
Factorization String
2 × 610633
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
4
Divisor Sum (σ)
1,831,902
Proper Divisor Sum
610,636
Digit Sum / Digital Root
20 (Root: 2)
Radix Representation
| Decimal | 1221266 |
| Binary | 100101010001010010010 (21 bits) |
| Octal | 0o4521222 |
| Hexadecimal | 0x12A292 |
Divisor Catalog (4)
Collatz Trajectory (59 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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