21491719 (number)

21491719 is an odd 8-digits composite number following 21491718 and preceding 21491720. In scientific notation, it is written as 2.1491719 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 21463144 positive integers (up to 21491719) that are relatively prime to 21491719.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand seven hundred nineteen

Notation

Scientific notation 2.1491719 × 10^7
Engineering notation 2.1491719 × 10^6

Prime Factorization of 21491719

Prime Factorization 773 × 27803

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21491719
Product of the distinct prime numbers

The prime factorization of 21491719 is 773 × 27803. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21491719)

Multiplication

n×y
n×2 42983438
n×3 64475157
n×4 85966876
n×5 107458595

Division

n÷y
n÷2 10745859.5
n÷3 7163906.3333333
n÷3 5372929.75
n÷5 4298343.8

Exponentiation

ny
n2 461893985574961
n3 9.9268957457671E+21
n4 2.1334605391032E+29
n5 4.5851734403995E+36

Nth Root

y√n
2√n 4635.9161985523
3√n 278.02918365884
4√n 68.087562730299
5√n 29.272123630719

Divisors of 21491719

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 -21491718
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 21491719 can be divided by 4 positive divisors. The sum of these divisors (counting 21491719) is 1, the average is 0.25.

Base conversion 21491719

Base System Value
2 Binary 1010001111111000000000111
3 Ternary 1111102220002121
4 Quaternary 1101333000013
5 Quinary 21000213334
6 Senary 2044350411
8 Octal 121770007
10 Decimal 21491719
12 Duodecimal 7245407
16 Hexadecimal 147f007
20 Vigesimal 6e695j
36 Base36 csn47

Cryptographic Hash Functions

md5 5d7cafe2a4f7d43c62a246f273b92ac2
sha1 90ac3194fa13c8abae685719672f4a1b48f7cbc5
sha256 793e4790fcee414bee4fcba33a32b68a9de1be9555897e815295ddfc410964fb
sha512 c3d54404197fe2fae65ac5b2458c9ceb38145bdbda89d6c6a4fe8aa2b50c8a16691bc03e7b99718738d153ac0d1dcfa6af97284b2656ce3b84a23bfefd88f0d9
ripemd-160 02fa0cf0b063dcb3b24c60a80fc6f15c5a0c6a7c

21491719 as geometric shapes

Circle

Radius = n
Diameter 42983438
Circumference 135036453.04683
Area 1.4510827518196E+15

Sphere

Radius = n
Volume 4.1581683663805E+22
Surface area 5.8043310072784E+15
Circumference 135036453.04683

Square

Length = n
Perimeter 85966876
Area 461893985574961
Diagonal 30393880.488512

Cube

Length = n
Surface area 2771363913449766
Volume 9.9268957457671E+21
Space diagonal 37224749.249993

Equilateral Triangle

Length = n
Perimeter 64475157
Area 2.0000596268158E+14
Altitude 18612374.624997

Triangular Pyramid

Length = n
Surface area 2.0000596268158E+14
Volume 1.169895882994E+21
Height 10131293.496171