λ
Sequence Observatory

1,821,846

2 × 3 × 13 × 23357
Abundant Even Composite

Starting at 1,821,846, the Collatz iteration reaches 1 after 96 steps. The first transition is 910923; the starting value is even with 16 positive divisors.

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Prime Factor Structure

Factorization String 2 × 3 × 13 × 23357
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 3,924,144
Proper Divisor Sum 2,102,298
Digit Sum / Digital Root 30 (Root: 3)
Adjacent Primes #1821821 ← → #1821847

Radix Representation

Decimal 1821846
Binary 110111100110010010110 (21 bits)
Octal 0o6746226
Hexadecimal 0x1BCC96

Divisor Catalog (5 of 16)

1 2 3 6 13

Collatz Trajectory (96 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.

1,821,846 910,923 2,732,770 1,366,385 4,099,156

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