81,189
33 × 31 × 97
Deficient
Odd
Composite
81,189 factors as 3^3 × 31 × 97. Its 16 positive divisors give a proper-divisor sum of 44,251, so this integer is deficient. The Collatz stopping time is 138 steps.
Prime Factor Structure
Factorization String
3^3 × 31 × 97
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
16
Divisor Sum (σ)
125,440
Proper Divisor Sum
44,251
Digit Sum / Digital Root
27 (Root: 9)
Radix Representation
| Decimal | 81189 |
| Binary | 10011110100100101 (17 bits) |
| Octal | 0o236445 |
| Hexadecimal | 0x13D25 |
Divisor Catalog (16)
Collatz Trajectory (138 steps to reach 1)
Iterative sequence n → n/2 (if even) or 3n+1 (if odd):
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