21493711 (number)

21493711 is an odd 8-digits composite number following 21493710 and preceding 21493712. In scientific notation, it is written as 2.1493711 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 20934048 positive integers (up to 21493711) that are relatively prime to 21493711.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand seven hundred eleven

Notation

Scientific notation 2.1493711 × 10^7
Engineering notation 2.1493711 × 10^6

Prime Factorization of 21493711

Prime Factorization 47 × 1997 × 229

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21493711
Product of the distinct prime numbers

The prime factorization of 21493711 is 47 × 1997 × 229. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21493711)

Multiplication

n×y
n×2 42987422
n×3 64481133
n×4 85974844
n×5 107468555

Division

n÷y
n÷2 10746855.5
n÷3 7164570.3333333
n÷3 5373427.75
n÷5 4298742.2

Exponentiation

ny
n2 461979612551521
n3 9.9296562800744E+21
n4 2.1342516241325E+29
n5 4.5872987610385E+36

Nth Root

y√n
2√n 4636.1310378375
3√n 278.03777327768
4√n 68.089140381102
5√n 29.272666238861

Divisors of 21493711

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 -21493710
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 21493711 can be divided by 8 positive divisors. The sum of these divisors (counting 21493711) is 1, the average is 0.125.

Base conversion 21493711

Base System Value
2 Binary 1010001111111011111001111
3 Ternary 1111102222211101
4 Quaternary 1101333133033
5 Quinary 21000244321
6 Senary 2044403531
8 Octal 121773717
10 Decimal 21493711
12 Duodecimal 72465a7
16 Hexadecimal 147f7cf
20 Vigesimal 6e6e5b
36 Base36 csonj

Cryptographic Hash Functions

md5 27980b900a622b3fa30bf4e4ed9dbf56
sha1 ede17bb96d8172edc2ef3a58aec5d3635662f2ca
sha256 0b6ba1ee10ef21eb1b6df3be4297be87640e5da3c14f1e7dcec489ecc0399e3d
sha512 a6764860e9609dde8de6a747a5362c2c3dadc305cbd738e433e2255f16d8c7197505b43324e8623c2734c6121b1be8841eb33b125802a8e9432a447d5aca3745
ripemd-160 ee458f00666937ae4169440060bdb9c57c518d1f

21493711 as geometric shapes

Circle

Radius = n
Diameter 42987422
Circumference 135048969.15196
Area 1.4513517569001E+15

Sphere

Radius = n
Volume 4.1593246962871E+22
Surface area 5.8054070276005E+15
Circumference 135048969.15196

Square

Length = n
Perimeter 85974844
Area 461979612551521
Diagonal 30396697.601928

Cube

Length = n
Surface area 2771877675309126
Volume 9.9296562800744E+21
Space diagonal 37228199.495202

Equilateral Triangle

Length = n
Perimeter 64481133
Area 2.0004304025005E+14
Altitude 18614099.747601

Triangular Pyramid

Length = n
Surface area 2.0004304025005E+14
Volume 1.170221215082E+21
Height 10132232.533976