λ
Sequence Observatory

4,141,428

22 × 3 × 563 × 613
Abundant Even Composite

Starting at 4,141,428, the Collatz iteration reaches 1 after 185 steps. The first transition is 2070714; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 3 × 563 × 613
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 9,696,288
Proper Divisor Sum 5,554,860
Digit Sum / Digital Root 24 (Root: 6)
Adjacent Primes #4141409 ← → #4141439

Radix Representation

Decimal 4141428
Binary 1111110011000101110100 (22 bits)
Octal 0o17630564
Hexadecimal 0x3F3174

Divisor Catalog (24)

Collatz Trajectory (185 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

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