21686780 (number)

21686780 is an even 8-digits composite number following 21686779 and preceding 21686781. In scientific notation, it is written as 2.1686780 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 24 positive divisors. There are 8284416 positive integers (up to 21686780) that are relatively prime to 21686780.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred eighty-six thousand seven hundred eighty

Notation

Scientific notation 2.1686780 × 10^7
Engineering notation 2.1686780 × 10^6

Prime Factorization of 21686780

Prime Factorization 2 × 2 × 145 × 139 × 269

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10843390
Product of the distinct prime numbers

The prime factorization of 21686780 is 2 × 2 × 145 × 139 × 269. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 1, 78, 58, 683, 467, 554, 6907, 7785, 77184, 206653, 516291, 9619223, 2235673, 9074950, 48209498, 799219409, 813564829, 163026004, 8780561597

Basic calculations (n = 21686780)

Multiplication

n×y
n×2 43373560
n×3 65060340
n×4 86747120
n×5 108433900

Division

n÷y
n÷2 10843390
n÷3 7228926.6666667
n÷3 5421695
n÷5 4337356

Exponentiation

ny
n2 470316426768400
n3 1.0199648877712E+22
n4 2.211975412882E+29
n5 4.797062414458E+36

Nth Root

y√n
2√n 4656.9066986574
3√n 278.86779191946
4√n 68.241532065579
5√n 29.325067116646

Divisors of 21686780

1, 2, 4, 139, 145, 269, 278, 290, 538, 556, 580, 1076, 20155, 37391, 39005, 40310, 74782, 78010, 80620, 149564, 156020, 5421695, 10843390, 21686780

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21686779
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21686780 can be divided by 24 positive divisors. The sum of these divisors (counting 21686780) is 1, the average is 0.041666666666667.

Base conversion 21686780

Base System Value
2 Binary 1010010101110100111111100
3 Ternary 1111210210200002
4 Quaternary 1102232213330
5 Quinary 21022434110
6 Senary 2052453432
8 Octal 122564774
10 Decimal 21686780
12 Duodecimal 731a278
16 Hexadecimal 14ae9fc
20 Vigesimal 6fagj0
36 Base36 cwtmk

Cryptographic Hash Functions

md5 61fcb9066644e16b155b767de16a76f9
sha1 8eb26bdaf3dd35d722461db88ccae9fc6ac3a43e
sha256 d87c484b233d0f3772978d13cdfaa3b40160db4c35e7500d5bae3b776bbf50ef
sha512 41508d096728cc23de602c79e86123e724a5440fc0e32c47af8a1bb0e3abaf434fe7063483aa5c6c1c51a89f869ec1bd2a87ff41262cc3955216bbfa89c131e6
ripemd-160 36741c8e82e166ac4b2d956e5624c7314e776c08

21686780 as geometric shapes

Circle

Radius = n
Diameter 43373560
Circumference 136262057.45604
Area 1.4775426311982E+15

Sphere

Radius = n
Volume 4.2724189311222E+22
Surface area 5.9101705247928E+15
Circumference 136262057.45604

Square

Length = n
Perimeter 86747120
Area 470316426768400
Diagonal 30669738.400202

Cube

Length = n
Surface area 2821898560610400
Volume 1.0199648877712E+22
Space diagonal 37562604.812569

Equilateral Triangle

Length = n
Perimeter 65060340
Area 2.0365298669928E+14
Altitude 18781302.406284

Triangular Pyramid

Length = n
Surface area 2.0365298669928E+14
Volume 1.2020401478587E+21
Height 10223246.133401