20151491 (number)

20151491 is an odd 8-digits composite number following 20151490 and preceding 20151492. In scientific notation, it is written as 2.0151491 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 19456584 positive integers (up to 20151491) that are relatively prime to 20151491.

Interesting facts

Basic properties

Name

Name twenty million one hundred fifty-one thousand four hundred ninety-one

Notation

Scientific notation 2.0151491 × 10^7
Engineering notation 2.0151491 × 10^6

Prime Factorization of 20151491

Prime Factorization 29 × 694879

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20151491
Product of the distinct prime numbers

The prime factorization of 20151491 is 29 × 694879. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20151491)

Multiplication

n×y
n×2 40302982
n×3 60454473
n×4 80605964
n×5 100757455

Division

n÷y
n÷2 10075745.5
n÷3 6717163.6666667
n÷3 5037872.75
n÷5 4030298.2

Exponentiation

ny
n2 406082589523081
n3 8.1831696480311E+21
n4 1.6490306951377E+29
n5 3.3230427211791E+36

Nth Root

y√n
2√n 4489.041211662
3√n 272.12538823127
4√n 67.000307549011
5√n 28.897577490052

Divisors of 20151491

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20151490
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20151491 can be divided by 4 positive divisors. The sum of these divisors (counting 20151491) is 1, the average is 0.25.

Base conversion 20151491

Base System Value
2 Binary 1001100110111110011000011
3 Ternary 1101220210122112
4 Quaternary 1030313303003
5 Quinary 20124321431
6 Senary 1555525535
8 Octal 114676303
10 Decimal 20151491
12 Duodecimal 68b98ab
16 Hexadecimal 1337cc3
20 Vigesimal 65iieb
36 Base36 bzwzn

Cryptographic Hash Functions

md5 7d6309bdf53eba42094f60c560ec7d46
sha1 7b30aef822eb3199103921abbd03f9e3bb36c033
sha256 a651e1edd117dd26c49b0f82a2da02e74c8731c688a7baf7b45e0ffe5e0960b6
sha512 73382fea9c4cb4747593bbeae1fdab058478b4d8bbc3d8b8de29d0a741ccb20730b714a932f7833d23a48469ba0af87990941b1e4f518aa8f42a7c060330b140
ripemd-160 cd22d9f3f8c4e04d715cebef410cc1f043229f57

20151491 as geometric shapes

Circle

Radius = n
Diameter 40302982
Circumference 126615552.16896
Area 1.2757460799964E+15

Sphere

Radius = n
Volume 3.4277580865778E+22
Surface area 5.1029843199857E+15
Circumference 126615552.16896

Square

Length = n
Perimeter 80605964
Area 406082589523081
Diagonal 28498511.874239

Cube

Length = n
Surface area 2436495537138486
Volume 8.1831696480311E+21
Space diagonal 34903406.260267

Equilateral Triangle

Length = n
Perimeter 60454473
Area 1.7583891928078E+14
Altitude 17451703.130133

Triangular Pyramid

Length = n
Surface area 1.7583891928078E+14
Volume 9.6439579162045E+20
Height 9499503.9580798