18013945 (number)

18013945 is an odd 8-digits composite number following 18013944 and preceding 18013946. In scientific notation, it is written as 1.8013945 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 13258080 positive integers (up to 18013945) that are relatively prime to 18013945.

Interesting facts

Basic properties

Name

Name eighteen million thirteen thousand nine hundred forty-five

Notation

Scientific notation 1.8013945 × 10^7
Engineering notation 1.8013945 × 10^6

Prime Factorization of 18013945

Prime Factorization 23 × 5 × 5053 × 31

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18013945
Product of the distinct prime numbers

The prime factorization of 18013945 is 23 × 5 × 5053 × 31. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 1, 2, 41, 332, 875, 4792, 664, 29824, 83908, 34504, 502488, 4660269, 1692395, 48439571, 15569762, 910409000, 724391249, 4990707436, 8316079787

Basic calculations (n = 18013945)

Multiplication

n×y
n×2 36027890
n×3 54041835
n×4 72055780
n×5 90069725

Division

n÷y
n÷2 9006972.5
n÷3 6004648.3333333
n÷3 4503486.25
n÷5 3602789

Exponentiation

ny
n2 324502214463025
n3 5.8455650437151E+21
n4 1.0530168719141E+29
n5 1.8968988014732E+36

Nth Root

y√n
2√n 4244.2838029519
3√n 262.14180017103
4√n 65.148168070575
5√n 28.256721192927

Divisors of 18013945

1, 5, 23, 31, 115, 155, 713, 3565, 5053, 25265, 116219, 156643, 581095, 783215, 3602789, 18013945

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 -18013944
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 18013945 can be divided by 16 positive divisors. The sum of these divisors (counting 18013945) is 1, the average is 0.0625.

Base conversion 18013945

Base System Value
2 Binary 1000100101101111011111001
3 Ternary 1020220012111011
4 Quaternary 1010231323321
5 Quinary 14102421240
6 Senary 1442033521
8 Octal 104557371
10 Decimal 18013945
12 Duodecimal 60488a1
16 Hexadecimal 112def9
20 Vigesimal 5cbeh5
36 Base36 aq3nd

Cryptographic Hash Functions

md5 99c64e87008316bf85ec17b670da82a9
sha1 0a0ea9fceba76bd492b03d9099cc238fa363a30e
sha256 a030c1e6e11721e76efc420ceebb9f625cfa8689da83f85946a4cfbf58c19f4b
sha512 afa4f75c942b83ed6c76e49887907eeef542febfd806cb4350f2d1d709d70fac1dd4c6994ca51eed041217d3ce239fa9d530d72fb7c35de0f7a89a0df9caf87e
ripemd-160 7bd35b2fc2cd40363eff24168ae43b6272f95571

18013945 as geometric shapes

Circle

Radius = n
Diameter 36027890
Circumference 113184954.54834
Area 1.0194537730307E+15

Sphere

Radius = n
Volume 2.4485845596556E+22
Surface area 4.0778150921226E+15
Circumference 113184954.54834

Square

Length = n
Perimeter 72055780
Area 324502214463025
Diagonal 25475565.330843

Cube

Length = n
Surface area 1947013286778150
Volume 5.8455650437151E+21
Space diagonal 31201067.984751

Equilateral Triangle

Length = n
Perimeter 54041835
Area 1.4051358065464E+14
Altitude 15600533.992376

Triangular Pyramid

Length = n
Surface area 1.4051358065464E+14
Volume 6.8890644704634E+20
Height 8491855.110281