2,155,390
2 × 5 × 67 × 3217
Deficient
Even
Composite
Starting at 2,155,390, the Collatz iteration reaches 1 after 241 steps. The first transition is 1077695; the starting value is even with 16 positive divisors.
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Prime Factor Structure
Factorization String
2 × 5 × 67 × 3217
Distinct Prime Factors
4
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
16
Divisor Sum (σ)
3,938,832
Proper Divisor Sum
1,783,442
Digit Sum / Digital Root
25 (Root: 7)
Radix Representation
| Decimal | 2155390 |
| Binary | 1000001110001101111110 (22 bits) |
| Octal | 0o10161576 |
| Hexadecimal | 0x20E37E |
Divisor Catalog (5 of 16)
Collatz Trajectory (241 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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