6,821,555
5 × 13 × 104947
Deficient
Odd
Composite
Starting at 6,821,555, the Collatz iteration reaches 1 after 116 steps. The first transition is 20464666; the starting value is odd with 8 positive divisors.
Resources
Prime Factor Structure
Factorization String
5 × 13 × 104947
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
8,815,632
Proper Divisor Sum
1,994,077
Digit Sum / Digital Root
32 (Root: 5)
Adjacent Primes
#6821543 ← → #6821561
Radix Representation
| Decimal | 6821555 |
| Binary | 11010000001011010110011 (23 bits) |
| Octal | 0o32013263 |
| Hexadecimal | 0x6816B3 |
Divisor Catalog (5 of 8)
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.