λ
Sequence Observatory

8,647,403

157 × 55079
Deficient Odd Composite

Starting at 8,647,403, the Collatz iteration reaches 1 after 119 steps. The first transition is 25942210; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 157 × 55079
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 8,702,640
Proper Divisor Sum 55,237
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #8647393 ← → #8647409

Radix Representation

Decimal 8647403
Binary 100000111111001011101011 (24 bits)
Octal 0o40771353
Hexadecimal 0x83F2EB

Divisor Catalog (4)

1 157 55,079 8,647,403

Collatz Trajectory (119 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.

8,647,403 25,942,210 12,971,105 38,913,316 19,456,658

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