6,639,025
52 × 265561
Deficient
Odd
Composite
Starting at 6,639,025, the Collatz iteration reaches 1 after 116 steps. The first transition is 19917076; the starting value is odd with 6 positive divisors.
Resources
Prime Factor Structure
Factorization String
5^2 × 265561
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
6
Divisor Sum (σ)
8,232,422
Proper Divisor Sum
1,593,397
Digit Sum / Digital Root
31 (Root: 4)
Adjacent Primes
#6639013 ← → #6639041
Radix Representation
| Decimal | 6639025 |
| Binary | 11001010100110110110001 (23 bits) |
| Octal | 0o31246661 |
| Hexadecimal | 0x654DB1 |
Divisor Catalog (5 of 6)
Collatz Trajectory (116 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.