λ
Sequence Observatory

3,218,164

22 × 804541
Deficient Even Composite

Starting at 3,218,164, the Collatz iteration reaches 1 after 146 steps. The first transition is 1609082; the starting value is even with 6 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 804541
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 6
Divisor Sum (σ) 5,631,794
Proper Divisor Sum 2,413,630
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #3218161 ← → #3218167

Radix Representation

Decimal 3218164
Binary 1100010001101011110100 (22 bits)
Octal 0o14215364
Hexadecimal 0x311AF4

Divisor Catalog (6)

1 2 4 804,541 1,609,082 3,218,164

Collatz Trajectory (146 steps to reach 1)

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

3,218,164 1,609,082 804,541 2,413,624 1,206,812 603,406 301,703 905,110 452,555 1,357,666 678,833 2,036,500 1,018,250 509,125 1,527,376 763,688 381,844 190,922 95,461 286,384 143,192 71,596 35,798 17,899 53,698 26,849 80,548 40,274 20,137 60,412 30,206 15,103 45,310 22,655 67,966 33,983 101,950 50,975 152,926 76,463 229,390 114,695 344,086 172,043 516,130 258,065 774,196 387,098 193,549 580,648 290,324 145,162 72,581 217,744 108,872 54,436 27,218 13,609 40,828 20,414

More profiles

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