λ
Sequence Observatory

4,665,872

24 × 23 × 31 × 409
Abundant Even Composite

Starting at 4,665,872, the Collatz iteration reaches 1 after 193 steps. The first transition is 2332936; the starting value is even with 40 positive divisors.

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Prime Factor Structure

Factorization String 2^4 × 23 × 31 × 409
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 40
Divisor Sum (σ) 9,761,280
Proper Divisor Sum 5,095,408
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #4665863 ← → #4665877

Radix Representation

Decimal 4665872
Binary 10001110011001000010000 (23 bits)
Octal 0o21631020
Hexadecimal 0x473210

Divisor Catalog (5 of 40)

1 2 4 8 16

Collatz Trajectory (193 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.

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