20787940 (number)

20787940 is an even 8-digits composite number following 20787939 and preceding 20787941. In scientific notation, it is written as 2.0787940 × 10^7. The sum of its digits is 37. It has a total of 5 prime factors and 24 positive divisors. There are 7825920 positive integers (up to 20787940) that are relatively prime to 20787940.

Interesting facts

Basic properties

Name

Name twenty million seven hundred eighty-seven thousand nine hundred forty

Notation

Scientific notation 2.0787940 × 10^7
Engineering notation 2.0787940 × 10^6

Prime Factorization of 20787940

Prime Factorization 2 × 2 × 5 × 17 × 61141

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10393970
Product of the distinct prime numbers

The prime factorization of 20787940 is 2 × 2 × 5 × 17 × 61141. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 7, 19, 11, 548, 817, 8032, 6675, 31416, 95476, 474566, 960780, 7683311, 3358638, 62840102, 38585119, 582126176, 371740602, 812859990, 3194794375

Basic calculations (n = 20787940)

Multiplication

n×y
n×2 41575880
n×3 62363820
n×4 83151760
n×5 103939700

Division

n÷y
n÷2 10393970
n÷3 6929313.3333333
n÷3 5196985
n÷5 4157588

Exponentiation

ny
n2 432138449443600
n3 8.9832681587266E+21
n4 1.8674363948752E+29
n5 3.8820155730482E+36

Nth Root

y√n
2√n 4559.3793437265
3√n 274.96061143849
4√n 67.523176345063
5√n 29.077849936271

Divisors of 20787940

1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 61141, 122282, 244564, 305705, 611410, 1039397, 1222820, 2078794, 4157588, 5196985, 10393970, 20787940

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 -20787939
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 20787940 can be divided by 24 positive divisors. The sum of these divisors (counting 20787940) is 1, the average is 0.041666666666667.

Base conversion 20787940

Base System Value
2 Binary 1001111010011001011100100
3 Ternary 1110010010200201
4 Quaternary 1033103023210
5 Quinary 20310203230
6 Senary 2021320244
8 Octal 117231344
10 Decimal 20787940
12 Duodecimal 6b66084
16 Hexadecimal 13d32e4
20 Vigesimal 69i9h0
36 Base36 cdk2s

Cryptographic Hash Functions

md5 36ccc1d853721bbacd3aea088515950f
sha1 bba9f9ae4008d25891e3e095ad5b06943d23dfab
sha256 ea33c5a11091a31fc70e47c615dc1b97155e07054384c6083d0f25054d9c882d
sha512 113bd567c8be025a1af9afc15387ac4738fb0d4378a7f79426e8e130e441514a580f93f7c91bc62c180f5a486020921c5c873d0d63dfc820366e2d05cb08ea8f
ripemd-160 d11b4202f12f821c89b6cc8a14fcc8623c4a9d2c

20787940 as geometric shapes

Circle

Radius = n
Diameter 41575880
Circumference 130614479.17453
Area 1.3576029781057E+15

Sphere

Radius = n
Volume 3.7629025670243E+22
Surface area 5.4304119124228E+15
Circumference 130614479.17453

Square

Length = n
Perimeter 83151760
Area 432138449443600
Diagonal 29398586.681798

Cube

Length = n
Surface area 2592830696661600
Volume 8.9832681587266E+21
Space diagonal 36005768.264693

Equilateral Triangle

Length = n
Perimeter 62363820
Area 1.8712143758509E+14
Altitude 18002884.132347

Triangular Pyramid

Length = n
Surface area 1.8712143758509E+14
Volume 1.0586883053755E+21
Height 9799528.8939327