21031820 (number)

21031820 is an even 8-digits composite number following 21031819 and preceding 21031821. In scientific notation, it is written as 2.1031820 × 10^7. The sum of its digits is 17. It has a total of 4 prime factors and 12 positive divisors. There are 8412720 positive integers (up to 21031820) that are relatively prime to 21031820.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1031820 × 10^7
Engineering notation 2.1031820 × 10^6

Prime Factorization of 21031820

Prime Factorization 2 × 2 × 5 × 1051591

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10515910
Product of the distinct prime numbers

The prime factorization of 21031820 is 2 × 2 × 5 × 1051591. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 9, 85, 45, 135, 467, 3349, 3418, 67214, 36721, 311682, 100289, 291840, 6268815, 83528349, 53641014, 856306011, 708254466, 7152544245, 3382590860

Basic calculations (n = 21031820)

Multiplication

n×y
n×2 42063640
n×3 63095460
n×4 84127280
n×5 105159100

Division

n÷y
n÷2 10515910
n÷3 7010606.6666667
n÷3 5257955
n÷5 4206364

Exponentiation

ny
n2 442337452512400
n3 9.3031616804993E+21
n4 1.9566242189516E+29
n5 4.1151368380631E+36

Nth Root

y√n
2√n 4586.0462274164
3√n 276.03169488285
4√n 67.720353125308
5√n 29.145759117527

Divisors of 21031820

1, 2, 4, 5, 10, 20, 1051591, 2103182, 4206364, 5257955, 10515910, 21031820

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031819
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031820 can be divided by 12 positive divisors. The sum of these divisors (counting 21031820) is 1, the average is 0.083333333333333.

Base conversion 21031820

Base System Value
2 Binary 1010000001110101110001100
3 Ternary 1110120112020022
4 Quaternary 1100032232030
5 Quinary 20341004240
6 Senary 2030441312
8 Octal 120165614
10 Decimal 21031820
12 Duodecimal 7063238
16 Hexadecimal 140eb8c
20 Vigesimal 6b8jb0
36 Base36 cis98

Cryptographic Hash Functions

md5 2861a37cd6a51e4a4aabc240fa9861ea
sha1 5d3cd002fb403f4b033ffc70e2f4d87d0aa0ee8e
sha256 9076efad1c1ccbc0f9d3230ed7738f8c938c06db43acb8054f070745e8c5f864
sha512 d6a17ea1655680235a6be6727c83f9ad3b383db966bd857aa16245408e132b95075bf697020b0e9663e8755370401621c5d6913585b8fc5011ba9b1fc4eca7be
ripemd-160 70304bca7a5c7e887aab572a67d317c2784185fe

21031820 as geometric shapes

Circle

Radius = n
Diameter 42063640
Circumference 132146822.40725
Area 1.3896440912206E+15

Sphere

Radius = n
Volume 3.896899252082E+22
Surface area 5.5585763648823E+15
Circumference 132146822.40725

Square

Length = n
Perimeter 84127280
Area 442337452512400
Diagonal 29743485.08539

Cube

Length = n
Surface area 2654024715074400
Volume 9.3031616804993E+21
Space diagonal 36428180.815643

Equilateral Triangle

Length = n
Perimeter 63095460
Area 1.9153773546052E+14
Altitude 18214090.407822

Triangular Pyramid

Length = n
Surface area 1.9153773546052E+14
Volume 1.0963881184593E+21
Height 9914495.0284632