21568649 (number)

21568649 is an odd 8-digits composite number following 21568648 and preceding 21568650. In scientific notation, it is written as 2.1568649 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 21228480 positive integers (up to 21568649) that are relatively prime to 21568649.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1568649 × 10^7
Engineering notation 2.1568649 × 10^6

Prime Factorization of 21568649

Prime Factorization 163 × 113 × 1171

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21568649
Product of the distinct prime numbers

The prime factorization of 21568649 is 163 × 113 × 1171. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21568649)

Multiplication

n×y
n×2 43137298
n×3 64705947
n×4 86274596
n×5 107843245

Division

n÷y
n÷2 10784324.5
n÷3 7189549.6666667
n÷3 5392162.25
n÷5 4313729.8

Exponentiation

ny
n2 465206619685201
n3 1.0033878292467E+22
n4 2.1641719899893E+29
n5 4.6678266027711E+36

Nth Root

y√n
2√n 4644.2059601185
3√n 278.36052546873
4√n 68.148411280957
5√n 29.293049710064

Divisors of 21568649

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 -21568648
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 21568649 can be divided by 8 positive divisors. The sum of these divisors (counting 21568649) is 1, the average is 0.125.

Base conversion 21568649

Base System Value
2 Binary 1010010010001110010001001
3 Ternary 1111120210121212
4 Quaternary 1102101302021
5 Quinary 21010144044
6 Senary 2050142505
8 Octal 122216211
10 Decimal 21568649
12 Duodecimal 7281a35
16 Hexadecimal 1491c89
20 Vigesimal 6eg1c9
36 Base36 cuah5

Cryptographic Hash Functions

md5 b668110c4e1828151b7237f62b0191e2
sha1 c18152509cd91bbda506c3d1b0630b110bde8f7e
sha256 0edf447b20b3b80062fea863e79a573e82863108891497ca71621cf7020f15c4
sha512 2c1c3afbaf9830ab37a39a2a072f3d666a5a4e78e0c326e288bdbaf92cac067ddbd9c5818f68399df453da3e8502404ca71221520a7b0270409f314a633d3f8c
ripemd-160 dac1b034ad78162f28df55e79d4fe7afb122a732

21568649 as geometric shapes

Circle

Radius = n
Diameter 43137298
Circumference 135519818.49251
Area 1.4614896988044E+15

Sphere

Radius = n
Volume 4.2029811107503E+22
Surface area 5.8459587952175E+15
Circumference 135519818.49251

Square

Length = n
Perimeter 86274596
Area 465206619685201
Diagonal 30502675.937865

Cube

Length = n
Surface area 2791239718111206
Volume 1.0033878292467E+22
Space diagonal 37357995.91862

Equilateral Triangle

Length = n
Perimeter 64705947
Area 2.0144037532803E+14
Altitude 18678997.95931

Triangular Pyramid

Length = n
Surface area 2.0144037532803E+14
Volume 1.1825038970339E+21
Height 10167558.645955