278,626
2 × 139313
Deficient
Even
Composite
Starting at 278,626, the Collatz iteration reaches 1 after 158 steps. The first transition is 139313; the starting value is even with 4 positive divisors.
Resources
Prime Factor Structure
Factorization String
2 × 139313
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
4
Divisor Sum (σ)
417,942
Proper Divisor Sum
139,316
Digit Sum / Digital Root
31 (Root: 4)
Adjacent Primes
#278623 ← → #278627
Radix Representation
| Decimal | 278626 |
| Binary | 1000100000001100010 (19 bits) |
| Octal | 0o1040142 |
| Hexadecimal | 0x44062 |
Divisor Catalog (4)
Collatz Trajectory (158 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.