λ
Sequence Observatory

3,641,593

3641593
Deficient Odd Prime

Starting at 3,641,593, the Collatz iteration reaches 1 after 159 steps. The first transition is 10924780; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 3641593
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 3,641,594
Proper Divisor Sum 1
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #3641591 ← → #3641609

Radix Representation

Decimal 3641593
Binary 1101111001000011111001 (22 bits)
Octal 0o15710371
Hexadecimal 0x3790F9

Divisor Catalog (2)

Collatz Trajectory (159 steps to reach 1)

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

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