18121013 (number)

18121013 is an odd 8-digits composite number following 18121012 and preceding 18121014. In scientific notation, it is written as 1.8121013 × 10^7. The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors. There are 17990508 positive integers (up to 18121013) that are relatively prime to 18121013.

Interesting facts

Basic properties

Name

Name eighteen million one hundred twenty-one thousand thirteen

Notation

Scientific notation 1.8121013 × 10^7
Engineering notation 1.8121013 × 10^6

Prime Factorization of 18121013

Prime Factorization 139 × 130367

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18121013
Product of the distinct prime numbers

The prime factorization of 18121013 is 139 × 130367. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18121013)

Multiplication

n×y
n×2 36242026
n×3 54363039
n×4 72484052
n×5 90605065

Division

n÷y
n÷2 9060506.5
n÷3 6040337.6666667
n÷3 4530253.25
n÷5 3624202.6

Exponentiation

ny
n2 328371112146169
n3 5.9504171920252E+21
n4 1.0782758729211E+29
n5 1.953945111079E+36

Nth Root

y√n
2√n 4256.8783163252
3√n 262.66013147211
4√n 65.244757002576
5√n 28.290231048352

Divisors of 18121013

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18121012
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18121013 can be divided by 4 positive divisors. The sum of these divisors (counting 18121013) is 1, the average is 0.25.

Base conversion 18121013

Base System Value
2 Binary 1000101001000000100110101
3 Ternary 1021002122100122
4 Quaternary 1011020010311
5 Quinary 14114333023
6 Senary 1444221325
8 Octal 105100465
10 Decimal 18121013
12 Duodecimal 609a845
16 Hexadecimal 1148135
20 Vigesimal 5d52ad
36 Base36 ase9h

Cryptographic Hash Functions

md5 292bf5b3d342d4187c3f040ebe5ccc8f
sha1 5cc8c908aca81e022e954725c1d427d0adb3726a
sha256 6c760848ecf34aa21b9c2f9e85602050bdabd5f4c3191fe8404a66729fcccdaa
sha512 864bc13ed34095b1cbef7561c26ec63623a41971845e57a550755f5332a0bf76947ac46237419edaf6f2b63126ad8a1e654604c3fbc15584f82c6468d88379b2
ripemd-160 dee66f61a12b93edd4d65e4dacfcb0a58de1ef14

18121013 as geometric shapes

Circle

Radius = n
Diameter 36242026
Circumference 113857682.63281
Area 1.0316082735695E+15

Sphere

Radius = n
Volume 2.4925049248348E+22
Surface area 4.1264330942781E+15
Circumference 113857682.63281

Square

Length = n
Perimeter 72484052
Area 328371112146169
Diagonal 25626982.348539

Cube

Length = n
Surface area 1970226672877014
Volume 5.9504171920252E+21
Space diagonal 31386515.200616

Equilateral Triangle

Length = n
Perimeter 54363039
Area 1.4218886249377E+14
Altitude 15693257.600308

Triangular Pyramid

Length = n
Surface area 1.4218886249377E+14
Volume 7.0126339122834E+20
Height 8542327.4495131