λ
Sigma Notebook

7,120,205

5 × 1424041
Deficient Odd Composite

7,120,205 is odd and not a perfect square. Its factorization is 5 × 1424041 and its 4 divisors sum to 8,544,252.

Prime Factor Structure

Factorization String 5 × 1424041
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 8,544,252
Proper Divisor Sum 1,424,047
Digit Sum / Digital Root 17 (Root: 8)
Adjacent Primes #7120189 ← → #7120213

Radix Representation

Decimal 7120205
Binary 11011001010010101001101 (23 bits)
Octal 0o33122515
Hexadecimal 0x6CA54D

Divisor Catalog (4)

1 5 1,424,041 7,120,205

Collatz Trajectory (279 steps to reach 1)

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

7,120,205 21,360,616 10,680,308 5,340,154 2,670,077 8,010,232 4,005,116 2,002,558 1,001,279 3,003,838 1,501,919 4,505,758 2,252,879 6,758,638 3,379,319 10,137,958 5,068,979 15,206,938 7,603,469 22,810,408 11,405,204 5,702,602 2,851,301 8,553,904 4,276,952 2,138,476 1,069,238 534,619 1,603,858 801,929 2,405,788 1,202,894 601,447 1,804,342 902,171 2,706,514 1,353,257 4,059,772 2,029,886 1,014,943 3,044,830 1,522,415 4,567,246 2,283,623 6,850,870 3,425,435 10,276,306 5,138,153 15,414,460 7,707,230 3,853,615 11,560,846 5,780,423 17,341,270 8,670,635 26,011,906 13,005,953 39,017,860 19,508,930 9,754,465

More profiles

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