2,581,402
2 × 127 × 10163
Deficient
Even
Composite
Starting at 2,581,402, the Collatz iteration reaches 1 after 218 steps. The first transition is 1290701; the starting value is even with 8 positive divisors.
Resources
Prime Factor Structure
Factorization String
2 × 127 × 10163
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
3,902,976
Proper Divisor Sum
1,321,574
Digit Sum / Digital Root
22 (Root: 4)
Adjacent Primes
#2581393 ← → #2581409
Radix Representation
| Decimal | 2581402 |
| Binary | 1001110110001110011010 (22 bits) |
| Octal | 0o11661632 |
| Hexadecimal | 0x27639A |
Divisor Catalog (5 of 8)
Collatz Trajectory (218 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.