15,972,732

2² × 3² × 443687

Prime Factor Structure

Factorization String 2^2 × 3^2 × 443687

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 18

Divisor Sum (σ) 40,375,608

Proper Divisor Sum 24,402,876

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #15972731 ← → #15972743

1 2 3 4 6 9 12 18 36 443,687 887,374 1,331,061 1,774,748 2,662,122 3,993,183 5,324,244 7,986,366 15,972,732

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

15,972,732 7,986,366 3,993,183 11,979,550 5,989,775 17,969,326 8,984,663 26,953,990 13,476,995 40,430,986 20,215,493 60,646,480 30,323,240 15,161,620 7,580,810 3,790,405 11,371,216 5,685,608 2,842,804 1,421,402 710,701 2,132,104 1,066,052 533,026 266,513 799,540 399,770 199,885 599,656 299,828 149,914 74,957 224,872 112,436 56,218 28,109 84,328 42,164 21,082 10,541 31,624 15,812 7,906 3,953 11,860 5,930 2,965 8,896 4,448 2,224 1,112 556 278 139 418 209 628 314 157 472

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