λ
Sequence Observatory

8,145,745

5 × 1629149
Deficient Odd Composite

Starting at 8,145,745, the Collatz iteration reaches 1 after 292 steps. The first transition is 24437236; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 5 × 1629149
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 9,774,900
Proper Divisor Sum 1,629,155
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #8145743 ← → #8145773

Radix Representation

Decimal 8145745
Binary 11111000100101101010001 (23 bits)
Octal 0o37045521
Hexadecimal 0x7C4B51

Divisor Catalog (4)

Collatz Trajectory (292 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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