199,660
22 × 5 × 67 × 149
Abundant
Even
Composite
Starting at 199,660, the Collatz iteration reaches 1 after 204 steps. The first transition is 99830; the starting value is even with 24 positive divisors.
Resources
Prime Factor Structure
Factorization String
2^2 × 5 × 67 × 149
Distinct Prime Factors
4
Square Status
No
Abundance Measure
Abundant
Analytical Properties
Total Divisors
24
Divisor Sum (σ)
428,400
Proper Divisor Sum
228,740
Digit Sum / Digital Root
31 (Root: 4)
Adjacent Primes
#199657 ← → #199669
Radix Representation
| Decimal | 199660 |
| Binary | 110000101111101100 (18 bits) |
| Octal | 0o605754 |
| Hexadecimal | 0x30BEC |
Divisor Catalog (5 of 24)
Collatz Trajectory (204 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.