217,808
24 × 13613
Deficient
Even
Composite
Starting at 217,808, the Collatz iteration reaches 1 after 67 steps. The first transition is 108904; the starting value is even with 10 positive divisors.
Resources
Prime Factor Structure
Factorization String
2^4 × 13613
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
10
Divisor Sum (σ)
422,034
Proper Divisor Sum
204,226
Digit Sum / Digital Root
26 (Root: 8)
Adjacent Primes
#217793 ← → #217823
Radix Representation
| Decimal | 217808 |
| Binary | 110101001011010000 (18 bits) |
| Octal | 0o651320 |
| Hexadecimal | 0x352D0 |
Divisor Catalog (5 of 10)
Collatz Trajectory (67 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.