λ
Sequence Observatory

7,628,417

7628417
Deficient Odd Prime

Starting at 7,628,417, the Collatz iteration reaches 1 after 279 steps. The first transition is 22885252; the starting value is odd with 2 positive divisors.

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Prime Factor Structure

Factorization String 7628417
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 7,628,418
Proper Divisor Sum 1
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #7628407 ← → #7628437

Radix Representation

Decimal 7628417
Binary 11101000110011010000001 (23 bits)
Octal 0o35063201
Hexadecimal 0x746681

Divisor Catalog (2)

Collatz Trajectory (279 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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