4,181,680
24 × 5 × 167 × 313
Abundant
Even
Composite
Starting at 4,181,680, the Collatz iteration reaches 1 after 136 steps. The first transition is 2090840; the starting value is even with 40 positive divisors.
Resources
Prime Factor Structure
Factorization String
2^4 × 5 × 167 × 313
Distinct Prime Factors
4
Square Status
No
Abundance Measure
Abundant
Analytical Properties
Total Divisors
40
Divisor Sum (σ)
9,811,872
Proper Divisor Sum
5,630,192
Digit Sum / Digital Root
28 (Root: 1)
Adjacent Primes
#4181669 ← → #4181693
Radix Representation
| Decimal | 4181680 |
| Binary | 1111111100111010110000 (22 bits) |
| Octal | 0o17747260 |
| Hexadecimal | 0x3FCEB0 |
Divisor Catalog (5 of 40)
Collatz Trajectory (136 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.