21131645 (number)

21131645 is an odd 8-digits composite number following 21131644 and preceding 21131646. In scientific notation, it is written as 2.1131645 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 16878400 positive integers (up to 21131645) that are relatively prime to 21131645.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand six hundred forty-five

Notation

Scientific notation 2.1131645 × 10^7
Engineering notation 2.1131645 × 10^6

Prime Factorization of 21131645

Prime Factorization 5 × 701 × 6029

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21131645
Product of the distinct prime numbers

The prime factorization of 21131645 is 5 × 701 × 6029. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21131645)

Multiplication

n×y
n×2 42263290
n×3 63394935
n×4 84526580
n×5 105658225

Division

n÷y
n÷2 10565822.5
n÷3 7043881.6666667
n÷3 5282911.25
n÷5 4226329

Exponentiation

ny
n2 446546420406025
n3 9.4362604320409E+21
n4 1.9940370557743E+29
n5 4.2137283179469E+36

Nth Root

y√n
2√n 4596.9169015765
3√n 276.46772281979
4√n 67.800567118399
5√n 29.173374105606

Divisors of 21131645

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131644
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131645 can be divided by 8 positive divisors. The sum of these divisors (counting 21131645) is 1, the average is 0.125.

Base conversion 21131645

Base System Value
2 Binary 1010000100111000101111101
3 Ternary 1110202121011112
4 Quaternary 1100213011331
5 Quinary 20402203040
6 Senary 2032531405
8 Octal 120470575
10 Decimal 21131645
12 Duodecimal 70b0b65
16 Hexadecimal 142717d
20 Vigesimal 6c1925
36 Base36 ckxa5

Cryptographic Hash Functions

md5 86894a1d05c740583e9587e14523e74f
sha1 2050223fc060cd3a65f1c334e9683fc8974b99b1
sha256 73074b150f441870acab14496fd7b4bf72d3f0fc244f8eb70c2315fc1f7cc52d
sha512 076b28dd6747c3d813326277057bfb8bd956f4d60b5097b3a8acd1852330f537b81b4fdeac54e50ae42878dfc0c2bf3af5853646dbe380cc06c739e608e7fc9c
ripemd-160 eb3bc2ae6e6d44f299a34ee8740894b8389da9bb

21131645 as geometric shapes

Circle

Radius = n
Diameter 42263290
Circumference 132774041.38053
Area 1.4028669538344E+15

Sphere

Radius = n
Volume 3.9526515267546E+22
Surface area 5.6114678153376E+15
Circumference 132774041.38053

Square

Length = n
Perimeter 84526580
Area 446546420406025
Diagonal 29884658.954254

Cube

Length = n
Surface area 2679278522436150
Volume 9.4362604320409E+21
Space diagonal 36601082.787509

Equilateral Triangle

Length = n
Perimeter 63394935
Area 1.9336027202031E+14
Altitude 18300541.393754

Triangular Pyramid

Length = n
Surface area 1.9336027202031E+14
Volume 1.1120739567564E+21
Height 9961552.9847512