λ
Sequence Observatory

7,297,571

7297571
Deficient Odd Prime

Starting at 7,297,571, the Collatz iteration reaches 1 after 59 steps. The first transition is 21892714; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 7297571
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 7,297,572
Proper Divisor Sum 1
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #7297567 ← → #7297583

Radix Representation

Decimal 7297571
Binary 11011110101101000100011 (23 bits)
Octal 0o33655043
Hexadecimal 0x6F5A23

Divisor Catalog (2)

Collatz Trajectory (59 steps to reach 1)

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

7,297,571 21,892,714 10,946,357 32,839,072 16,419,536 8,209,768 4,104,884 2,052,442 1,026,221 3,078,664 1,539,332 769,666 384,833 1,154,500 577,250 288,625 865,876 432,938 216,469 649,408 324,704 162,352 81,176 40,588 20,294 10,147 30,442 15,221 45,664 22,832 11,416 5,708 2,854 1,427 4,282 2,141 6,424 3,212 1,606 803 2,410 1,205 3,616 1,808 904 452 226 113 340 170 85 256 128 64 32 16 8 4 2 1

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