20087721 (number)

20087721 is an odd 8-digits composite number following 20087720 and preceding 20087722. In scientific notation, it is written as 2.0087721 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors. There are 12959640 positive integers (up to 20087721) that are relatively prime to 20087721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0087721 × 10^7
Engineering notation 2.0087721 × 10^6

Prime Factorization of 20087721

Prime Factorization 3 × 3 × 31 × 71999

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 6695907
Product of the distinct prime numbers

The prime factorization of 20087721 is 3 × 3 × 31 × 71999. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 5, 46, 70, 953, 510, 1205, 6848, 29038, 3438, 651493, 940386, 4625183, 3002466, 28033294, 76435993, 26785745, 270739300, 4858218197, 3801078960

Basic calculations (n = 20087721)

Multiplication

n×y
n×2 40175442
n×3 60263163
n×4 80350884
n×5 100438605

Division

n÷y
n÷2 10043860.5
n÷3 6695907
n÷3 5021930.25
n÷5 4017544.2

Exponentiation

ny
n2 403516534973841
n3 8.1057275734413E+21
n4 1.628255939973E+29
n5 3.2707951038769E+36

Nth Root

y√n
2√n 4481.9327304189
3√n 271.83803524393
4√n 66.947238407711
5√n 28.879264844184

Divisors of 20087721

1, 3, 9, 31, 93, 279, 71999, 215997, 647991, 2231969, 6695907, 20087721

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20087720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20087721 can be divided by 12 positive divisors. The sum of these divisors (counting 20087721) is 1, the average is 0.083333333333333.

Base conversion 20087721

Base System Value
2 Binary 1001100101000001110101001
3 Ternary 1101210120011200
4 Quaternary 1030220032221
5 Quinary 20120301341
6 Senary 1554314413
8 Octal 114501651
10 Decimal 20087721
12 Duodecimal 6888a09
16 Hexadecimal 13283a9
20 Vigesimal 65aj61
36 Base36 byjs9

Cryptographic Hash Functions

md5 d939674476a192aba04a82406cbbe40c
sha1 5fb57ec7121a69a4685995ad0b7b68922ad51a4d
sha256 9342a29c7248e9c50cb87e40fc161c4a4714950eddffea2d1f93d95a49adc1f2
sha512 45e9cafead3c8a0455e97ed2304f47fcfc4cb322655130416799191efb61f556b826d98252ff308993ec92e674b9973f344cc8a9a1cd6a406d41100480317c0f
ripemd-160 a4209381e83de999109255769042b1a4545aee54

20087721 as geometric shapes

Circle

Radius = n
Diameter 40175442
Circumference 126214873.44192
Area 1.2676845818758E+15

Sphere

Radius = n
Volume 3.3953192262298E+22
Surface area 5.0707383275033E+15
Circumference 126214873.44192

Square

Length = n
Perimeter 80350884
Area 403516534973841
Diagonal 28408327.475367

Cube

Length = n
Surface area 2421099209843046
Volume 8.1057275734413E+21
Space diagonal 34792953.380268

Equilateral Triangle

Length = n
Perimeter 60263163
Area 1.7472778506721E+14
Altitude 17396476.690134

Triangular Pyramid

Length = n
Surface area 1.7472778506721E+14
Volume 9.5526915560518E+20
Height 9469442.4917889