λ
Sigma Notebook

6,648,643

131 × 50753
Deficient Odd Composite

6,648,643 is odd and not a perfect square. Its factorization is 131 × 50753 and its 4 divisors sum to 6,699,528.

Prime Factor Structure

Factorization String 131 × 50753
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 6,699,528
Proper Divisor Sum 50,885
Digit Sum / Digital Root 37 (Root: 1)
Adjacent Primes #6648637 ← → #6648647

Radix Representation

Decimal 6648643
Binary 11001010111001101000011 (23 bits)
Octal 0o31271503
Hexadecimal 0x657343

Divisor Catalog (4)

1 131 50,753 6,648,643

Collatz Trajectory (116 steps to reach 1)

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

6,648,643 19,945,930 9,972,965 29,918,896 14,959,448 7,479,724 3,739,862 1,869,931 5,609,794 2,804,897 8,414,692 4,207,346 2,103,673 6,311,020 3,155,510 1,577,755 4,733,266 2,366,633 7,099,900 3,549,950 1,774,975 5,324,926 2,662,463 7,987,390 3,993,695 11,981,086 5,990,543 17,971,630 8,985,815 26,957,446 13,478,723 40,436,170 20,218,085 60,654,256 30,327,128 15,163,564 7,581,782 3,790,891 11,372,674 5,686,337 17,059,012 8,529,506 4,264,753 12,794,260 6,397,130 3,198,565 9,595,696 4,797,848 2,398,924 1,199,462 599,731 1,799,194 899,597 2,698,792 1,349,396 674,698 337,349 1,012,048 506,024 253,012

More profiles

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