21031890 (number)

21031890 is an even 8-digits composite number following 21031889 and preceding 21031891. In scientific notation, it is written as 2.1031890 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 4561920 positive integers (up to 21031890) that are relatively prime to 21031890.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1031890 × 10^7
Engineering notation 2.1031890 × 10^6

Prime Factorization of 21031890

Prime Factorization 2 × 3795 × 17 × 163

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21031890
Product of the distinct prime numbers

The prime factorization of 21031890 is 2 × 3795 × 17 × 163. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 5, 92, 85, 976, 67, 3221, 9822, 72116, 57319, 86145, 610854, 7761735, 6632642, 94315837, 32069709, 681809041, 413413431, 9536989397, 3440408159

Basic calculations (n = 21031890)

Multiplication

n×y
n×2 42063780
n×3 63095670
n×4 84127560
n×5 105159450

Division

n÷y
n÷2 10515945
n÷3 7010630
n÷3 5257972.5
n÷5 4206378

Exponentiation

ny
n2 442340396972100
n3 9.3032545716735E+21
n4 1.9566502679344E+29
n5 4.1152053203666E+36

Nth Root

y√n
2√n 4586.0538592563
3√n 276.03200112037
4√n 67.720409473484
5√n 29.14577851861

Divisors of 21031890

1, 2, 17, 34, 163, 326, 2771, 3795, 5542, 7590, 64515, 129030, 618585, 1237170, 10515945, 21031890

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 -21031889
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 21031890 can be divided by 16 positive divisors. The sum of these divisors (counting 21031890) is 1, the average is 0.0625.

Base conversion 21031890

Base System Value
2 Binary 1010000001110101111010010
3 Ternary 1110120112022220
4 Quaternary 1100032233102
5 Quinary 20341010030
6 Senary 2030441510
8 Octal 120165722
10 Decimal 21031890
12 Duodecimal 7063296
16 Hexadecimal 140ebd2
20 Vigesimal 6b8jea
36 Base36 cisb6

Cryptographic Hash Functions

md5 0e617b6ec2b310936fb5869ac815b3a5
sha1 054d0834624a99bf257d4cf1ed973c4933fd9e13
sha256 3c72947108f3bd515476a491986787b155df4cfdd3e72cec9bea1ed635c85bb1
sha512 bf1ae89e7f8b0e521fc0daa02c005462e3f008cad674e359c57573728d96919329a7aaa62d6922e5965eac142247474bf86aaff8e3485eb2112834caa40ad1ae
ripemd-160 6b0d6620d7dc361353338a2e43ac0b64e021047d

21031890 as geometric shapes

Circle

Radius = n
Diameter 42063780
Circumference 132147262.23022
Area 1.3896533415135E+15

Sphere

Radius = n
Volume 3.896938162246E+22
Surface area 5.5586133660542E+15
Circumference 132147262.23022

Square

Length = n
Perimeter 84127560
Area 442340396972100
Diagonal 29743584.080339

Cube

Length = n
Surface area 2654042381832600
Volume 9.3032545716735E+21
Space diagonal 36428302.0592

Equilateral Triangle

Length = n
Perimeter 63095670
Area 1.9153901044897E+14
Altitude 18214151.0296

Triangular Pyramid

Length = n
Surface area 1.9153901044897E+14
Volume 1.0963990657892E+21
Height 9914528.0267797