21568641 (number)

21568641 is an odd 8-digits composite number following 21568640 and preceding 21568642. In scientific notation, it is written as 2.1568641 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 13753872 positive integers (up to 21568641) that are relatively prime to 21568641.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred sixty-eight thousand six hundred forty-one

Notation

Scientific notation 2.1568641 × 10^7
Engineering notation 2.1568641 × 10^6

Prime Factorization of 21568641

Prime Factorization 3 × 23 × 312589

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21568641
Product of the distinct prime numbers

The prime factorization of 21568641 is 3 × 23 × 312589. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21568641)

Multiplication

n×y
n×2 43137282
n×3 64705923
n×4 86274564
n×5 107843205

Division

n÷y
n÷2 10784320.5
n÷3 7189547
n÷3 5392160.25
n÷5 4313728.2

Exponentiation

ny
n2 465206274586881
n3 1.0033867127512E+22
n4 2.16416877915E+29
n5 4.6678179460896E+36

Nth Root

y√n
2√n 4644.2050988302
3√n 278.36049105328
4√n 68.148404961746
5√n 29.293047537054

Divisors of 21568641

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 -21568640
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 21568641 can be divided by 8 positive divisors. The sum of these divisors (counting 21568641) is 1, the average is 0.125.

Base conversion 21568641

Base System Value
2 Binary 1010010010001110010000001
3 Ternary 1111120210121120
4 Quaternary 1102101302001
5 Quinary 21010144031
6 Senary 2050142453
8 Octal 122216201
10 Decimal 21568641
12 Duodecimal 7281a29
16 Hexadecimal 1491c81
20 Vigesimal 6eg1c1
36 Base36 cuagx

Cryptographic Hash Functions

md5 26858296d4ec0ec9a75fa878287c030e
sha1 5197e728f2d95661ce9ac13e180d09794f5ec3be
sha256 0a762eccbbd3e8d803d2c6bb5a0688e61cabeedc3dd51ba1c147a95d309f6b7c
sha512 aadce6e02de60f33c3f3cd8749b93939b4e1a54cd281c25b550142afd16a3aa458c0e1a508f536e363ff6c1d60f1a27ac9df14f7b816dc5ea956841ace49f2df
ripemd-160 49c34406892cdcece3ae089f25785d924db99a80

21568641 as geometric shapes

Circle

Radius = n
Diameter 43137282
Circumference 135519768.22703
Area 1.461488614646E+15

Sphere

Radius = n
Volume 4.202976433985E+22
Surface area 5.8459544585841E+15
Circumference 135519768.22703

Square

Length = n
Perimeter 86274564
Area 465206274586881
Diagonal 30502664.624156

Cube

Length = n
Surface area 2791237647521286
Volume 1.0033867127512E+22
Space diagonal 37357982.062213

Equilateral Triangle

Length = n
Perimeter 64705923
Area 2.0144022589608E+14
Altitude 18678991.031107

Triangular Pyramid

Length = n
Surface area 2.0144022589608E+14
Volume 1.1825025812314E+21
Height 10167554.874719