λ
Sequence Observatory

7,183,178

2 × 192 × 9949
Deficient Even Composite

Starting at 7,183,178, the Collatz iteration reaches 1 after 142 steps. The first transition is 3591589; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2 × 19^2 × 9949
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 11,372,850
Proper Divisor Sum 4,189,672
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #7183139 ← → #7183201

Radix Representation

Decimal 7183178
Binary 11011011001101101001010 (23 bits)
Octal 0o33315512
Hexadecimal 0x6D9B4A

Divisor Catalog (12)

1 2 19 38 361 722 9,949 19,898 189,031 378,062 3,591,589 7,183,178

Collatz Trajectory (142 steps to reach 1)

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

7,183,178 3,591,589 10,774,768 5,387,384 2,693,692 1,346,846 673,423 2,020,270 1,010,135 3,030,406 1,515,203 4,545,610 2,272,805 6,818,416 3,409,208 1,704,604 852,302 426,151 1,278,454 639,227 1,917,682 958,841 2,876,524 1,438,262 719,131 2,157,394 1,078,697 3,236,092 1,618,046 809,023 2,427,070 1,213,535 3,640,606 1,820,303 5,460,910 2,730,455 8,191,366 4,095,683 12,287,050 6,143,525 18,430,576 9,215,288 4,607,644 2,303,822 1,151,911 3,455,734 1,727,867 5,183,602 2,591,801 7,775,404 3,887,702 1,943,851 5,831,554 2,915,777 8,747,332 4,373,666 2,186,833 6,560,500 3,280,250 1,640,125

More profiles

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