21491142 (number)

21491142 is an even 8-digits composite number following 21491141 and preceding 21491143. In scientific notation, it is written as 2.1491142 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 6997032 positive integers (up to 21491142) that are relatively prime to 21491142.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand one hundred forty-two

Notation

Scientific notation 2.1491142 × 10^7
Engineering notation 2.1491142 × 10^6

Prime Factorization of 21491142

Prime Factorization 2 × 3 × 43 × 83299

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491142
Product of the distinct prime numbers

The prime factorization of 21491142 is 2 × 3 × 43 × 83299. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 7, 59, 53, 177, 852, 1604, 3581, 51794, 81891, 697622, 660981, 4973480, 8255666, 79335531, 56650534, 70646562, 909441306, 4589513515, 4828739022

Basic calculations (n = 21491142)

Multiplication

n×y
n×2 42982284
n×3 64473426
n×4 85964568
n×5 107455710

Division

n÷y
n÷2 10745571
n÷3 7163714
n÷3 5372785.5
n÷5 4298228.4

Exponentiation

ny
n2 461869184464164
n3 9.9260962287435E+21
n4 2.1332314355759E+29
n5 4.5845579700826E+36

Nth Root

y√n
2√n 4635.8539666387
3√n 278.02669550244
4√n 68.087105729637
5√n 29.271966452071

Divisors of 21491142

1, 2, 3, 6, 43, 86, 129, 258, 83299, 166598, 249897, 499794, 3581857, 7163714, 10745571, 21491142

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491141
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491142 can be divided by 16 positive divisors. The sum of these divisors (counting 21491142) is 1, the average is 0.0625.

Base conversion 21491142

Base System Value
2 Binary 1010001111110110111000110
3 Ternary 1111102212022020
4 Quaternary 1101332313012
5 Quinary 21000204032
6 Senary 2044344010
8 Octal 121766706
10 Decimal 21491142
12 Duodecimal 7245006
16 Hexadecimal 147edc6
20 Vigesimal 6e67h2
36 Base36 csmo6

Cryptographic Hash Functions

md5 9f5b23d93c60171786e44b68762510a1
sha1 bbc06b45ce0984a03458c8a9e61ea55773fe968a
sha256 1e449510e7e3495f42eac245a11eb9ca33321994a5688229af6379e63f428682
sha512 09b07d60a724b9d87dbf1984941ff0db5e083f045857e7088a134fa597bfce0ab712a4401e2514aee912fe451c0eb3fda03ae61d29f3fcce1a63669f3b6837a8
ripemd-160 5afba5ac7e1f4c7d3465ba8f811fd9e50e9afc03

21491142 as geometric shapes

Circle

Radius = n
Diameter 42982284
Circumference 135032827.64891
Area 1.4510048368321E+15

Sphere

Radius = n
Volume 4.1578334654728E+22
Surface area 5.8040193473285E+15
Circumference 135032827.64891

Square

Length = n
Perimeter 85964568
Area 461869184464164
Diagonal 30393064.487286

Cube

Length = n
Surface area 2771215106784984
Volume 9.9260962287435E+21
Space diagonal 37223749.856677

Equilateral Triangle

Length = n
Perimeter 64473426
Area 1.9999522348558E+14
Altitude 18611874.928339

Triangular Pyramid

Length = n
Surface area 1.9999522348558E+14
Volume 1.1698016590091E+21
Height 10131021.495762