21457513 (number)

21457513 is an odd 8-digits composite number following 21457512 and preceding 21457514. In scientific notation, it is written as 2.1457513 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 16621200 positive integers (up to 21457513) that are relatively prime to 21457513.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred fifty-seven thousand five hundred thirteen

Notation

Scientific notation 2.1457513 × 10^7
Engineering notation 2.1457513 × 10^6

Prime Factorization of 21457513

Prime Factorization 7 × 11 × 191 × 1459

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21457513
Product of the distinct prime numbers

The prime factorization of 21457513 is 7 × 11 × 191 × 1459. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 4, 100, 36, 928, 228, 7191, 1306, 10974, 13213, 128881, 582948, 9949383, 9275005, 94732088, 29266987, 55467085, 482767057, 4685817400, 7473331368

Basic calculations (n = 21457513)

Multiplication

n×y
n×2 42915026
n×3 64372539
n×4 85830052
n×5 107287565

Division

n÷y
n÷2 10728756.5
n÷3 7152504.3333333
n÷3 5364378.25
n÷5 4291502.6

Exponentiation

ny
n2 460424864145169
n3 9.8795725079182E+21
n4 2.119910555231E+29
n5 4.5488008297706E+36

Nth Root

y√n
2√n 4632.2254910572
3√n 277.88160253386
4√n 68.060454678596
5√n 29.262799850499

Divisors of 21457513

1, 7, 11, 77, 191, 1337, 1459, 2101, 10213, 14707, 16049, 112343, 278669, 1950683, 3065359, 21457513

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 -21457512
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 21457513 can be divided by 16 positive divisors. The sum of these divisors (counting 21457513) is 1, the average is 0.0625.

Base conversion 21457513

Base System Value
2 Binary 1010001110110101001101001
3 Ternary 1111101011011201
4 Quaternary 1101312221221
5 Quinary 20443120023
6 Senary 2043524201
8 Octal 121665151
10 Decimal 21457513
12 Duodecimal 7229661
16 Hexadecimal 1476a69
20 Vigesimal 6e23fd
36 Base36 crwq1

Cryptographic Hash Functions

md5 8488c1573f0a138e7b811e392c9638f2
sha1 49de4e26958e4e29f82ae7ebab4758fc9437aa68
sha256 9f5b23f44ac8e86531ee4aafa3dd49c8eefce1386fe3aa9974601cb45818f050
sha512 6944a7336038c9fb655875bd6fcdc75fa979785b6a5bb23853735a31c879b062ff4bcb0a1bf87d289dfd6808c3b1cfe9f4fe5b93c464f109dd520e769e7d0031
ripemd-160 badfb3a38bcc07e6c4630d15965d81e5e0a5c417

21457513 as geometric shapes

Circle

Radius = n
Diameter 42915026
Circumference 134821530.41021
Area 1.4464673707285E+15

Sphere

Radius = n
Volume 4.1383456548645E+22
Surface area 5.7858694829142E+15
Circumference 134821530.41021

Square

Length = n
Perimeter 85830052
Area 460424864145169
Diagonal 30345505.899397

Cube

Length = n
Surface area 2762549184871014
Volume 9.8795725079182E+21
Space diagonal 37165502.72007

Equilateral Triangle

Length = n
Perimeter 64372539
Area 1.9936981444186E+14
Altitude 18582751.360035

Triangular Pyramid

Length = n
Surface area 1.9936981444186E+14
Volume 1.1643187859289E+21
Height 10115168.633132