21808085 (number)

21808085 is an odd 8-digits composite number following 21808084 and preceding 21808086. In scientific notation, it is written as 2.1808085 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors. There are 15994368 positive integers (up to 21808085) that are relatively prime to 21808085.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1808085 × 10^7
Engineering notation 2.1808085 × 10^6

Prime Factorization of 21808085

Prime Factorization 5 × 13 × 157 × 2137

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21808085
Product of the distinct prime numbers

The prime factorization of 21808085 is 5 × 13 × 157 × 2137. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 2, 22, 935, 112, 7770, 6134, 31612, 57080, 384652, 134425, 9636286, 2728346, 98132349, 29243529, 60688749, 742438646, 9931172495, 5880930668

Basic calculations (n = 21808085)

Multiplication

n×y
n×2 43616170
n×3 65424255
n×4 87232340
n×5 109040425

Division

n÷y
n÷2 10904042.5
n÷3 7269361.6666667
n÷3 5452021.25
n÷5 4361617

Exponentiation

ny
n2 475592571367225
n3 1.0371763221745E+22
n4 2.2618829393969E+29
n5 4.9327335402417E+36

Nth Root

y√n
2√n 4669.9127400841
3√n 279.38677445716
4√n 68.336759800887
5√n 29.35779991351

Divisors of 21808085

1, 5, 13, 65, 157, 785, 2041, 2137, 10205, 10685, 27781, 138905, 335509, 1677545, 4361617, 21808085

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 -21808084
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 21808085 can be divided by 16 positive divisors. The sum of these divisors (counting 21808085) is 1, the average is 0.0625.

Base conversion 21808085

Base System Value
2 Binary 1010011001100001111010101
3 Ternary 1112000222001212
4 Quaternary 1103030033111
5 Quinary 21040324320
6 Senary 2055231205
8 Octal 123141725
10 Decimal 21808085
12 Duodecimal 7378505
16 Hexadecimal 14cc3d5
20 Vigesimal 6g6045
36 Base36 czf85

Cryptographic Hash Functions

md5 642e9edc12909427efc84e69ea62e4ba
sha1 160cc246d0fd3cf947ea5515049e805de9bab63d
sha256 2a1af38bc7963ec567ed5f96503613e542d098dfcd672d00e53d3944cc530249
sha512 41836d5d67d75e2e09fc36d5e9476dd6d8d4e8563c7006b751acd60b99aa4983afaacaa469958b5ef7922fa02e14bba7b5716ba6d5af8ed95913086ff4f7ea12
ripemd-160 80a8785774fa216cffee6357673a6ba810ea48a5

21808085 as geometric shapes

Circle

Radius = n
Diameter 43616170
Circumference 137024239.24972
Area 1.4941181283092E+15

Sphere

Radius = n
Volume 4.3445140189609E+22
Surface area 5.9764725132366E+15
Circumference 137024239.24972

Square

Length = n
Perimeter 87232340
Area 475592571367225
Diagonal 30841289.576385

Cube

Length = n
Surface area 2853555428203350
Volume 1.0371763221745E+22
Space diagonal 37772711.235781

Equilateral Triangle

Length = n
Perimeter 65424255
Area 2.0593762432759E+14
Altitude 18886355.61789

Triangular Pyramid

Length = n
Surface area 2.0593762432759E+14
Volume 1.2223240178262E+21
Height 10280429.858795