λ
Sequence Observatory

656,606

2 × 328303
Deficient Even Composite

Starting at 656,606, the Collatz iteration reaches 1 after 123 steps. The first transition is 328303; the starting value is even with 4 positive divisors.

Resources

JSON

Prime Factor Structure

Factorization String 2 × 328303
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 984,912
Proper Divisor Sum 328,306
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #656603 ← → #656609

Radix Representation

Decimal 656606
Binary 10100000010011011110 (20 bits)
Octal 0o2402336
Hexadecimal 0xA04DE

Divisor Catalog (4)

1 2 328,303 656,606

Collatz Trajectory (123 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.

656,606 328,303 984,910 492,455 1,477,366

More profiles

← Previous Integer #656,605 Browse Full Index Next Integer #656,607 →