2,560,663
7 × 365809
Deficient
Odd
Composite
Starting at 2,560,663, the Collatz iteration reaches 1 after 99 steps. The first transition is 7681990; the starting value is odd with 4 positive divisors.
Resources
Prime Factor Structure
Factorization String
7 × 365809
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
4
Divisor Sum (σ)
2,926,480
Proper Divisor Sum
365,817
Digit Sum / Digital Root
28 (Root: 1)
Adjacent Primes
#2560661 ← → #2560669
Radix Representation
| Decimal | 2560663 |
| Binary | 1001110001001010010111 (22 bits) |
| Octal | 0o11611227 |
| Hexadecimal | 0x271297 |
Divisor Catalog (4)
Collatz Trajectory (99 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.