2,117,321
2117321
Deficient
Odd
Prime
Starting at 2,117,321, the Collatz iteration reaches 1 after 73 steps. The first transition is 6351964; the starting value is odd with 2 positive divisors.
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Prime Factor Structure
Factorization String
2117321
Distinct Prime Factors
1
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
2
Divisor Sum (σ)
2,117,322
Proper Divisor Sum
1
Digit Sum / Digital Root
17 (Root: 8)
Radix Representation
| Decimal | 2117321 |
| Binary | 1000000100111011001001 (22 bits) |
| Octal | 0o10047311 |
| Hexadecimal | 0x204EC9 |
Divisor Catalog (2)
Collatz Trajectory (73 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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