20181890 (number)

20181890 is an even 8-digits composite number following 20181889 and preceding 20181891. In scientific notation, it is written as 2.0181890 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 7597824 positive integers (up to 20181890) that are relatively prime to 20181890.

Interesting facts

Basic properties

Name

Name twenty million one hundred eighty-one thousand eight hundred ninety

Notation

Scientific notation 2.0181890 × 10^7
Engineering notation 2.0181890 × 10^6

Prime Factorization of 20181890

Prime Factorization 2 × 5 × 17 × 118717

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20181890
Product of the distinct prime numbers

The prime factorization of 20181890 is 2 × 5 × 17 × 118717. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 9, 89, 344, 332, 5296, 3318, 81010, 24132, 924527, 571914, 5703285, 1573579, 52686087, 70701408, 181342132, 376371289, 3438398963, 3331481361

Basic calculations (n = 20181890)

Multiplication

n×y
n×2 40363780
n×3 60545670
n×4 80727560
n×5 100909450

Division

n÷y
n÷2 10090945
n÷3 6727296.6666667
n÷3 5045472.5
n÷5 4036378

Exponentiation

ny
n2 407308683972100
n3 8.2202590559697E+21
n4 1.6590036403908E+29
n5 3.3481828979967E+36

Nth Root

y√n
2√n 4492.4258480247
3√n 272.26215534007
4√n 67.02556115412
5√n 28.906290769559

Divisors of 20181890

1, 2, 5, 10, 17, 34, 85, 170, 118717, 237434, 593585, 1187170, 2018189, 4036378, 10090945, 20181890

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 -20181889
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 20181890 can be divided by 16 positive divisors. The sum of these divisors (counting 20181890) is 1, the average is 0.0625.

Base conversion 20181890

Base System Value
2 Binary 1001100111111001110000010
3 Ternary 1101222100100102
4 Quaternary 1030333032002
5 Quinary 20131310030
6 Senary 2000322402
8 Octal 114771602
10 Decimal 20181890
12 Duodecimal 6913402
16 Hexadecimal 133f382
20 Vigesimal 662eea
36 Base36 c0kg2

Cryptographic Hash Functions

md5 888f34284348c1351335f7084ab3446a
sha1 0968cb2a4d0b9c73a1f66a04a7916cdf75bcc5fa
sha256 38e8a59492cdb62ff37c221b1d2accdc9e407728ef3f233e73c5c49b8bf63771
sha512 6787689c1b6374f8f749a6a2f9f413bd74e77c6e462ffbfd79b7571ca866a3ce1434f524c9c487594aebd29b27cc14653d80d291eaa885fcc7a993ec1d93620a
ripemd-160 f91762f7e025f751458bcc375c4b5f2aecf21861

20181890 as geometric shapes

Circle

Radius = n
Diameter 40363780
Circumference 126806554.71911
Area 1.2795979693101E+15

Sphere

Radius = n
Volume 3.4432940614452E+22
Surface area 5.1183918772403E+15
Circumference 126806554.71911

Square

Length = n
Perimeter 80727560
Area 407308683972100
Diagonal 28541502.552322

Cube

Length = n
Surface area 2443852103832600
Volume 8.2202590559697E+21
Space diagonal 34956058.872766

Equilateral Triangle

Length = n
Perimeter 60545670
Area 1.7636983375092E+14
Altitude 17478029.436383

Triangular Pyramid

Length = n
Surface area 1.7636983375092E+14
Volume 9.6876682026438E+20
Height 9513834.1841073