21129715 (number)

21129715 is an odd 8-digits composite number following 21129714 and preceding 21129716. In scientific notation, it is written as 2.1129715 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 16903768 positive integers (up to 21129715) that are relatively prime to 21129715.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred twenty-nine thousand seven hundred fifteen

Notation

Scientific notation 2.1129715 × 10^7
Engineering notation 2.1129715 × 10^6

Prime Factorization of 21129715

Prime Factorization 5 × 4225943

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21129715
Product of the distinct prime numbers

The prime factorization of 21129715 is 5 × 4225943. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21129715)

Multiplication

n×y
n×2 42259430
n×3 63389145
n×4 84518860
n×5 105648575

Division

n÷y
n÷2 10564857.5
n÷3 7043238.3333333
n÷3 5282428.75
n÷5 4225943

Exponentiation

ny
n2 446464855981225
n3 9.4336751643993E+21
n4 1.9933086762634E+29
n5 4.2118044236472E+36

Nth Root

y√n
2√n 4596.7069734757
3√n 276.45930576012
4√n 67.799018971337
5√n 29.172841192346

Divisors of 21129715

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21129714
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21129715 can be divided by 4 positive divisors. The sum of these divisors (counting 21129715) is 1, the average is 0.25.

Base conversion 21129715

Base System Value
2 Binary 1010000100110100111110011
3 Ternary 1110202111112001
4 Quaternary 1100212213303
5 Quinary 20402122330
6 Senary 2032514431
8 Octal 120464763
10 Decimal 21129715
12 Duodecimal 70aba17
16 Hexadecimal 14269f3
20 Vigesimal 6c145f
36 Base36 ckvsj

Cryptographic Hash Functions

md5 6a8e0a2127589fdbb1af54faa0bd40e2
sha1 ee3b6c04d9f0d6ab0b51a668fd3316c26c2245ca
sha256 e9eefabdd52e64e8760f30326f0a26ceaba8dcab4a436dbf01697f2d4f444a0c
sha512 ab97eddaab737dfccb9aa9a6072d909976a30cbe1b655ab1322af983b42b9054f19b081c27af9db1cdee314bcd6450f1d53c743b6a1ac983c410fd37b1059f3e
ripemd-160 f7b2091ecf10a6051a7bd5fdadd87a6dd83d2810

21129715 as geometric shapes

Circle

Radius = n
Diameter 42259430
Circumference 132761914.83289
Area 1.4026107116366E+15

Sphere

Radius = n
Volume 3.9515686123773E+22
Surface area 5.6104428465466E+15
Circumference 132761914.83289

Square

Length = n
Perimeter 84518860
Area 446464855981225
Diagonal 29881929.522078

Cube

Length = n
Surface area 2678789135887350
Volume 9.4336751643993E+21
Space diagonal 36597739.92945

Equilateral Triangle

Length = n
Perimeter 63389145
Area 1.9332495358835E+14
Altitude 18298869.964725

Triangular Pyramid

Length = n
Surface area 1.9332495358835E+14
Volume 1.111769280043E+21
Height 9960643.1740261