1,972,321
13 × 151717
Deficient
Odd
Composite
Starting at 1,972,321, the Collatz iteration reaches 1 after 171 steps. The first transition is 5916964; the starting value is odd with 4 positive divisors.
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Prime Factor Structure
Factorization String
13 × 151717
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
4
Divisor Sum (σ)
2,124,052
Proper Divisor Sum
151,731
Digit Sum / Digital Root
25 (Root: 7)
Radix Representation
| Decimal | 1972321 |
| Binary | 111100001100001100001 (21 bits) |
| Octal | 0o7414141 |
| Hexadecimal | 0x1E1861 |
Divisor Catalog (4)
Collatz Trajectory (171 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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