20642721 (number)

20642721 is an odd 8-digits composite number following 20642720 and preceding 20642722. In scientific notation, it is written as 2.0642721 × 10^7. The sum of its digits is 24. It has a total of 5 prime factors and 24 positive divisors. There are 11404800 positive integers (up to 20642721) that are relatively prime to 20642721.

Interesting facts

Basic properties

Name

Name twenty million six hundred forty-two thousand seven hundred twenty-one

Notation

Scientific notation 2.0642721 × 10^7
Engineering notation 2.0642721 × 10^6

Prime Factorization of 20642721

Prime Factorization 3 × 11 × 11 × 1387 × 41

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1876611
Product of the distinct prime numbers

The prime factorization of 20642721 is 3 × 11 × 11 × 1387 × 41. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 3, 53, 73, 330, 314, 945, 5533, 3870, 49273, 624093, 993515, 9955713, 2157466, 98576787, 66354947, 368965173, 43858019, 6021943053, 1014358027

Basic calculations (n = 20642721)

Multiplication

n×y
n×2 41285442
n×3 61928163
n×4 82570884
n×5 103213605

Division

n÷y
n÷2 10321360.5
n÷3 6880907
n÷3 5160680.25
n÷5 4128544.2

Exponentiation

ny
n2 426121930283841
n3 8.7963161188308E+21
n4 1.8157989946883E+29
n5 3.748303203943E+36

Nth Root

y√n
2√n 4543.4261301357
3√n 274.31884756764
4√n 67.404941437077
5√n 29.037109917499

Divisors of 20642721

1, 3, 11, 33, 41, 121, 123, 363, 451, 1353, 1387, 4161, 4961, 14883, 15257, 45771, 56867, 167827, 170601, 503481, 625537, 1876611, 6880907, 20642721

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 -20642720
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 20642721 can be divided by 24 positive divisors. The sum of these divisors (counting 20642721) is 1, the average is 0.041666666666667.

Base conversion 20642721

Base System Value
2 Binary 1001110101111101110100001
3 Ternary 1102211202111020
4 Quaternary 1032233232201
5 Quinary 20241031341
6 Senary 2014240053
8 Octal 116575641
10 Decimal 20642721
12 Duodecimal 6ab6029
16 Hexadecimal 13afba1
20 Vigesimal 6906g1
36 Base36 cag0x

Cryptographic Hash Functions

md5 d9be45d7400f20d12f6b73b4570ab573
sha1 f8fd30e110507cb88ac0e5eb337df45981db6040
sha256 95488e4c0ce394004ed0cbb69b17bc598a6073ad8568b55bcc250651f306b0dc
sha512 a11cf97a4ba095ee88880e46d1d2c08acdbb3efe92ad03fa002a9bd446710e307b4b907744f65a8dfb70d71745aedf707ab8712f4b57a4a8cbbe5c267c0fab45
ripemd-160 dc73fbf204e7bab4840f8f081995b88f1a676c2f

20642721 as geometric shapes

Circle

Radius = n
Diameter 41285442
Circumference 129702041.28741
Area 1.3387015257132E+15

Sphere

Radius = n
Volume 3.6845922796763E+22
Surface area 5.3548061028529E+15
Circumference 129702041.28741

Square

Length = n
Perimeter 82570884
Area 426121930283841
Diagonal 29193216.002484

Cube

Length = n
Surface area 2556731581703046
Volume 8.7963161188308E+21
Space diagonal 35754241.578469

Equilateral Triangle

Length = n
Perimeter 61928163
Area 1.8451620836773E+14
Altitude 17877120.789235

Triangular Pyramid

Length = n
Surface area 1.8451620836773E+14
Volume 1.036655796181E+21
Height 9731072.000828