λ
Sequence Observatory

2,205,358

2 × 1102679
Deficient Even Composite

Starting at 2,205,358, the Collatz iteration reaches 1 after 179 steps. The first transition is 1102679; the starting value is even with 4 positive divisors.

Resources

JSON

Prime Factor Structure

Factorization String 2 × 1102679
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 3,308,040
Proper Divisor Sum 1,102,682
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #2205353 ← → #2205373

Radix Representation

Decimal 2205358
Binary 1000011010011010101110 (22 bits)
Octal 0o10323256
Hexadecimal 0x21A6AE

Divisor Catalog (4)

1 2 1,102,679 2,205,358

Collatz Trajectory (179 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.

2,205,358 1,102,679 3,308,038 1,654,019 4,962,058

More profiles

← Previous Integer #2,205,357 Browse Full Index Next Integer #2,205,359 →