27981906 (number)

27981906 is an even 8-digits composite number following 27981905 and preceding 27981907. In scientific notation, it is written as 2.7981906 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 9110304 positive integers (up to 27981906) that are relatively prime to 27981906.

Interesting facts

Basic properties

Name

Name twenty-seven million nine hundred eighty-one thousand nine hundred six

Notation

Scientific notation 2.7981906 × 10^7
Engineering notation 2.7981906 × 10^6

Prime Factorization of 27981906

Prime Factorization 2 × 3 × 43 × 108457

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 27981906
Product of the distinct prime numbers

The prime factorization of 27981906 is 2 × 3 × 43 × 108457. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 34, 52, 789, 303, 899, 4978, 12843, 83333, 9482, 434208, 8048842, 3279353, 47027895, 20922594, 395998055, 472780595, 5353286026, 8785351946

Basic calculations (n = 27981906)

Multiplication

n×y
n×2 55963812
n×3 83945718
n×4 111927624
n×5 139909530

Division

n÷y
n÷2 13990953
n÷3 9327302
n÷3 6995476.5
n÷5 5596381.2

Exponentiation

ny
n2 782987063392836
n3 2.1909470407074E+22
n4 6.1306874144054E+29
n5 1.7154831894527E+37

Nth Root

y√n
2√n 5289.7926235345
3√n 303.59347352052
4√n 72.730960556935
5√n 30.858545974579

Divisors of 27981906

1, 2, 3, 6, 43, 86, 129, 258, 108457, 216914, 325371, 650742, 4663651, 9327302, 13990953, 27981906

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -27981905
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 27981906 can be divided by 16 positive divisors. The sum of these divisors (counting 27981906) is 1, the average is 0.0625.

Base conversion 27981906

Base System Value
2 Binary 1101010101111100001010010
3 Ternary 1221122121221220
4 Quaternary 1222233201102
5 Quinary 24130410111
6 Senary 2435425510
8 Octal 152574122
10 Decimal 27981906
12 Duodecimal 9455296
16 Hexadecimal 1aaf852
20 Vigesimal 8ehef6
36 Base36 gnqz6

Cryptographic Hash Functions

md5 d6ae2e884474cbfad36beb4f22dfdcc1
sha1 e59985dc955301f745ec49bb09301a58ef70d2d7
sha256 a3a07ff9bd3c37cc887bb791b10a6a666b94d7fd83c772b0fd5d991c352c7f4d
sha512 d778f203a38937f6e811b47664f7807d1a7ee254cd2b863f0632ec1cc2c3fdc89d2459514e371fe3f18300e66aceef187a19e59014b7468c82a60b30ccd6c079
ripemd-160 bf30851312e295f1e21b8b63025e72fc82e21556

27981906 as geometric shapes

Circle

Radius = n
Diameter 55963812
Circumference 175815500.64608
Area 2.4598264062108E+15

Sphere

Radius = n
Volume 9.177417503321E+22
Surface area 9.8393056248431E+15
Circumference 175815500.64608

Square

Length = n
Perimeter 111927624
Area 782987063392836
Diagonal 39572390.966249

Cube

Length = n
Surface area 4697922380357016
Volume 2.1909470407074E+22
Space diagonal 48466082.884616

Equilateral Triangle

Length = n
Perimeter 83945718
Area 3.3904334386639E+14
Altitude 24233041.442308

Triangular Pyramid

Length = n
Surface area 3.3904334386639E+14
Volume 2.582055849508E+21
Height 13190796.98875