126,561
3 × 42187
Deficient
Odd
Composite
126,561 factors as 3 × 42187. Its 4 positive divisors give a proper-divisor sum of 42,191, so this integer is deficient. The Collatz stopping time is 224 steps.
Resources
Prime Factor Structure
Factorization String
3 × 42187
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
4
Divisor Sum (σ)
168,752
Proper Divisor Sum
42,191
Digit Sum / Digital Root
21 (Root: 3)
Adjacent Primes
#126551 ← → #126583
Radix Representation
| Decimal | 126561 |
| Binary | 11110111001100001 (17 bits) |
| Octal | 0o367141 |
| Hexadecimal | 0x1EE61 |
Divisor Catalog (4)
Collatz Trajectory (224 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.