λ
Sigma Notebook

8,228,920

23 × 5 × 7 × 29389
Abundant Even Composite

8,228,920 is even and not a perfect square. Its factorization is 2^3 × 5 × 7 × 29389 and its 32 divisors sum to 21,160,800.

Prime Factor Structure

Factorization String 2^3 × 5 × 7 × 29389
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 32
Divisor Sum (σ) 21,160,800
Proper Divisor Sum 12,931,880
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #8228903 ← → #8228947

Radix Representation

Decimal 8228920
Binary 11111011001000000111000 (23 bits)
Octal 0o37310070
Hexadecimal 0x7D9038

Divisor Catalog (32)

1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 29,389 58,778 117,556 146,945 205,723 235,112 293,890 411,446 587,780 822,892 1,028,615 1,175,560 1,645,784 2,057,230 4,114,460 8,228,920

Collatz Trajectory (217 steps to reach 1)

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

8,228,920 4,114,460 2,057,230 1,028,615 3,085,846 1,542,923 4,628,770 2,314,385 6,943,156 3,471,578 1,735,789 5,207,368 2,603,684 1,301,842 650,921 1,952,764 976,382 488,191 1,464,574 732,287 2,196,862 1,098,431 3,295,294 1,647,647 4,942,942 2,471,471 7,414,414 3,707,207 11,121,622 5,560,811 16,682,434 8,341,217 25,023,652 12,511,826 6,255,913 18,767,740 9,383,870 4,691,935 14,075,806 7,037,903 21,113,710 10,556,855 31,670,566 15,835,283 47,505,850 23,752,925 71,258,776 35,629,388 17,814,694 8,907,347 26,722,042 13,361,021 40,083,064 20,041,532 10,020,766 5,010,383 15,031,150 7,515,575 22,546,726 11,273,363

More profiles

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