257,421
3 × 53 × 1619
Deficient
Odd
Composite
257,421 factors as 3 × 53 × 1619. Its 8 positive divisors give a proper-divisor sum of 92,499, so this integer is deficient. The Collatz stopping time is 49 steps.
Prime Factor Structure
Factorization String
3 × 53 × 1619
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
349,920
Proper Divisor Sum
92,499
Digit Sum / Digital Root
21 (Root: 3)
Radix Representation
| Decimal | 257421 |
| Binary | 111110110110001101 (18 bits) |
| Octal | 0o766615 |
| Hexadecimal | 0x3ED8D |
Divisor Catalog (8)
Collatz Trajectory (49 steps to reach 1)
Iterative sequence n → n/2 (if even) or 3n+1 (if odd):
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