18090081 (number)

18090081 is an odd 8-digits composite number following 18090080 and preceding 18090082. In scientific notation, it is written as 1.8090081 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 11670480 positive integers (up to 18090081) that are relatively prime to 18090081.

Interesting facts

Basic properties

Name

Name eighteen million ninety thousand eighty-one

Notation

Scientific notation 1.8090081 × 10^7
Engineering notation 1.8090081 × 10^6

Prime Factorization of 18090081

Prime Factorization 9 × 3 × 31 × 21613

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18090081
Product of the distinct prime numbers

The prime factorization of 18090081 is 9 × 3 × 31 × 21613. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 8, 63, 36, 251, 510, 7465, 5154, 50913, 77312, 15437, 575257, 1281554, 2279891, 78063490, 26837954, 291398823, 243535914, 6740399170, 3227211230

Basic calculations (n = 18090081)

Multiplication

n×y
n×2 36180162
n×3 54270243
n×4 72360324
n×5 90450405

Division

n÷y
n÷2 9045040.5
n÷3 6030027
n÷3 4522520.25
n÷5 3618016.2

Exponentiation

ny
n2 327251030586561
n3 5.9199976506444E+21
n4 1.0709323701997E+29
n5 1.9373253322434E+36

Nth Root

y√n
2√n 4253.2435857825
3√n 262.51059549069
4√n 65.216896474629
5√n 28.280566339998

Divisors of 18090081

1, 3, 9, 27, 31, 93, 279, 837, 21613, 64839, 194517, 583551, 670003, 2010009, 6030027, 18090081

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 -18090080
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 18090081 can be divided by 16 positive divisors. The sum of these divisors (counting 18090081) is 1, the average is 0.0625.

Base conversion 18090081

Base System Value
2 Binary 1000101000000100001100001
3 Ternary 1021001001221000
4 Quaternary 1011000201201
5 Quinary 14112340311
6 Senary 1443422213
8 Octal 105004141
10 Decimal 18090081
12 Duodecimal 6084969
16 Hexadecimal 1140861
20 Vigesimal 5d1541
36 Base36 arqe9

Cryptographic Hash Functions

md5 9a2cfea11d25dc498f41ae5a8e79d110
sha1 870611712e5945785aa3c70f33535f76097c3682
sha256 35d8ec12675d7ae8c1ceff6bde15b68e640b525a349d2bc00a76de94b812cebe
sha512 3bd18801854770082394a5671a6d85b84ed65449b95a9ec4171a867165bc37f4939a597e1788f6a8379da53b13acde800cb7ab12365e46ebb57164c9cd8bf34a
ripemd-160 5ec5cc548d1cc839c9044ecf8df9fce287424848

18090081 as geometric shapes

Circle

Radius = n
Diameter 36180162
Circumference 113663331.14489
Area 1.0280894335704E+15

Sphere

Radius = n
Volume 2.4797628171378E+22
Surface area 4.1123577342817E+15
Circumference 113663331.14489

Square

Length = n
Perimeter 72360324
Area 327251030586561
Diagonal 25583237.894628

Cube

Length = n
Surface area 1963506183519366
Volume 5.9199976506444E+21
Space diagonal 31332939.405036

Equilateral Triangle

Length = n
Perimeter 54270243
Area 1.417038529513E+14
Altitude 15666469.702518

Triangular Pyramid

Length = n
Surface area 1.417038529513E+14
Volume 6.9767841389651E+20
Height 8527745.9648759