18381821 (number)

18381821 is an odd 8-digits prime number following 18381820 and preceding 18381822. In scientific notation, it is written as 1.8381821 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 18381820 positive integers (up to 18381821) that are relatively prime to 18381821.

Interesting facts

Basic properties

Name

Name eighteen million three hundred eighty-one thousand eight hundred twenty-one

Notation

Scientific notation 1.8381821 × 10^7
Engineering notation 1.8381821 × 10^6

Prime Factorization of 18381821

Prime Factorization 18381821

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 18381821
Product of the distinct prime numbers

The prime factorization of 18381821 is 18381821. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18381821)

Multiplication

n×y
n×2 36763642
n×3 55145463
n×4 73527284
n×5 91909105

Division

n÷y
n÷2 9190910.5
n÷3 6127273.6666667
n÷3 4595455.25
n÷5 3676364.2

Exponentiation

ny
n2 337891343276041
n3 6.2110581895497E+21
n4 1.1417055986089E+29
n5 2.0986627948326E+36

Nth Root

y√n
2√n 4287.4025936457
3√n 263.9142522637
4√n 65.478260465942
5√n 28.37120008184

Divisors of 18381821

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 18381822
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 9190911
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4287.4027102664
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999998911969
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18381821 can be divided by 2 positive divisors. The sum of these divisors (counting 18381821) is 18381822, the average is 9190911.

Base conversion 18381821

Base System Value
2 Binary 1000110000111101111111101
3 Ternary 1021120220010012
4 Quaternary 1012013233331
5 Quinary 14201204241
6 Senary 1453553005
8 Octal 106075775
10 Decimal 18381821
12 Duodecimal 61a5765
16 Hexadecimal 1187bfd
20 Vigesimal 5eheb1
36 Base36 axzi5

Cryptographic Hash Functions

md5 5ffdc75899460dd4ed053a8169d12cc9
sha1 8279c7a15b95dd02ba82bc89e6495bf342580555
sha256 27fab8562fff1ae42291e5981e3b52818816c94fba9aedd99d3bfb5760a59978
sha512 173d4a7f65618405629d3c50e7274b581d8a89dd2f6611f3b00156e1a9d3913365426bce09627efc0da75b648d11f5c1528cad94d5789eb0ceb10e7ff5f148ad
ripemd-160 ba19f3765a50a2fc13091f088faaa28821ee0a4e

18381821 as geometric shapes

Circle

Radius = n
Diameter 36763642
Circumference 115496387.62641
Area 1.0615169617476E+15

Sphere

Radius = n
Volume 2.6016819705744E+22
Surface area 4.2460678469904E+15
Circumference 115496387.62641

Square

Length = n
Perimeter 73527284
Area 337891343276041
Diagonal 25995820.559315

Cube

Length = n
Surface area 2027348059656246
Volume 6.2110581895497E+21
Space diagonal 31838247.907637

Equilateral Triangle

Length = n
Perimeter 55145463
Area 1.4631124349795E+14
Altitude 15919123.953818

Triangular Pyramid

Length = n
Surface area 1.4631124349795E+14
Volume 7.3198022736248E+20
Height 8665273.5197715