λ
Sequence Observatory

1,629,504

26 × 33 × 23 × 41
Abundant Even Composite

Starting at 1,629,504, the Collatz iteration reaches 1 after 114 steps. The first transition is 814752; the starting value is even with 112 positive divisors.

Prime Factor Structure

Factorization String 2^6 × 3^3 × 23 × 41
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 112
Divisor Sum (σ) 5,120,640
Proper Divisor Sum 3,491,136
Digit Sum / Digital Root 27 (Root: 9)
Adjacent Primes #1629479 ← → #1629541

Radix Representation

Decimal 1629504
Binary 110001101110101000000 (21 bits)
Octal 0o6156500
Hexadecimal 0x18DD40

Divisor Catalog (60 of 112)

Collatz Trajectory (114 steps to reach 1)

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

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