21542431 (number)

21542431 is an odd 8-digits composite number following 21542430 and preceding 21542432. In scientific notation, it is written as 2.1542431 × 10^7. The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors. There are 21184800 positive integers (up to 21542431) that are relatively prime to 21542431.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred forty-two thousand four hundred thirty-one

Notation

Scientific notation 2.1542431 × 10^7
Engineering notation 2.1542431 × 10^6

Prime Factorization of 21542431

Prime Factorization 79 × 701 × 389

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21542431
Product of the distinct prime numbers

The prime factorization of 21542431 is 79 × 701 × 389. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21542431)

Multiplication

n×y
n×2 43084862
n×3 64627293
n×4 86169724
n×5 107712155

Division

n÷y
n÷2 10771215.5
n÷3 7180810.3333333
n÷3 5385607.75
n÷5 4308486.2

Exponentiation

ny
n2 464076333389761
n3 9.9973323907819E+21
n4 2.1536684321248E+29
n5 4.6395253595928E+36

Nth Root

y√n
2√n 4641.3824449188
3√n 278.24769170815
4√n 68.127692203088
5√n 29.285924749455

Divisors of 21542431

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 -21542430
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 21542431 can be divided by 8 positive divisors. The sum of these divisors (counting 21542431) is 1, the average is 0.125.

Base conversion 21542431

Base System Value
2 Binary 1010010001011011000011111
3 Ternary 1111112110122211
4 Quaternary 1102023120133
5 Quinary 21003324211
6 Senary 2045421251
8 Octal 122133037
10 Decimal 21542431
12 Duodecimal 726a827
16 Hexadecimal 148b61f
20 Vigesimal 6ecg1b
36 Base36 ctq8v

Cryptographic Hash Functions

md5 8f5a10c70ca92cde7cc974560758575f
sha1 7f91b86168e827f6a7e46954399153fc8050d892
sha256 47087b8d1a9b0aeb57edc17db27c5eb0d8e8a89bcea16e984c9b77ccc848f615
sha512 e0ff00d421bd107a88f5b3dc755624a127035339f700bdc1e7e2e2af6753d602ee0623a20fe32543291ee955f0dde2973f235938ac7de6102c681e19cb2d3920
ripemd-160 37bdafb2e6c672e780934090dbbc60ffd1cb918c

21542431 as geometric shapes

Circle

Radius = n
Diameter 43084862
Circumference 135355085.94013
Area 1.4579387996822E+15

Sphere

Radius = n
Volume 4.1876727992501E+22
Surface area 5.8317551987286E+15
Circumference 135355085.94013

Square

Length = n
Perimeter 86169724
Area 464076333389761
Diagonal 30465598.086687

Cube

Length = n
Surface area 2784458000338566
Volume 9.9973323907819E+21
Space diagonal 37312585.010547

Equilateral Triangle

Length = n
Perimeter 64627293
Area 2.0095094700533E+14
Altitude 18656292.505273

Triangular Pyramid

Length = n
Surface area 2.0095094700533E+14
Volume 1.1781969212163E+21
Height 10155199.362229