20921913 (number)

20921913 is an odd 8-digits composite number following 20921912 and preceding 20921914. In scientific notation, it is written as 2.0921913 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors. There are 13893336 positive integers (up to 20921913) that are relatively prime to 20921913.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand nine hundred thirteen

Notation

Scientific notation 2.0921913 × 10^7
Engineering notation 2.0921913 × 10^6

Prime Factorization of 20921913

Prime Factorization 3 × 3 × 263 × 8839

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 6973971
Product of the distinct prime numbers

The prime factorization of 20921913 is 3 × 3 × 263 × 8839. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 47, 6, 945, 65, 6920, 6335, 56307, 22514, 313366, 69442, 9903948, 927773, 17374747, 50250204, 64253792, 96522139, 6436792800, 6583812263

Basic calculations (n = 20921913)

Multiplication

n×y
n×2 41843826
n×3 62765739
n×4 83687652
n×5 104609565

Division

n÷y
n÷2 10460956.5
n÷3 6973971
n÷3 5230478.25
n÷5 4184382.6

Exponentiation

ny
n2 437726443579569
n3 9.1580745703712E+21
n4 1.9160443940882E+29
n5 4.0087314117251E+36

Nth Root

y√n
2√n 4574.0477697549
3√n 275.55003082369
4√n 67.63170683751
5√n 29.115233562221

Divisors of 20921913

1, 3, 9, 263, 789, 2367, 8839, 26517, 79551, 2324657, 6973971, 20921913

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 -20921912
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 20921913 can be divided by 12 positive divisors. The sum of these divisors (counting 20921913) is 1, the average is 0.083333333333333.

Base conversion 20921913

Base System Value
2 Binary 1001111110011111000111001
3 Ternary 1110100221110200
4 Quaternary 1033303320321
5 Quinary 20324000123
6 Senary 2024232413
8 Octal 117637071
10 Decimal 20921913
12 Duodecimal 700b709
16 Hexadecimal 13f3e39
20 Vigesimal 6af4fd
36 Base36 cgfg9

Cryptographic Hash Functions

md5 deb0df27298f96e97b03b3475c4627be
sha1 b3c88bb1ecccdc706ac9a3e9ec3d614d0cd20618
sha256 c036079f077ae81b1e66e2d46902afab31ef5ece8c51a1cdbd510bca01c2ce0e
sha512 c960cd94409a6a4a5d547b386c9deb99ea19aca049292a0e66237cc6e4ffc65ee731cef59fe7dbe380c1940ca0dad0176c7469fc0518203893fa942dc65078e5
ripemd-160 397ceb1e658476cc38e747341e7b7ee54ed8496a

20921913 as geometric shapes

Circle

Radius = n
Diameter 41843826
Circumference 131456256.35969
Area 1.3751581794316E+15

Sphere

Radius = n
Volume 3.8361253055074E+22
Surface area 5.5006327177262E+15
Circumference 131456256.35969

Square

Length = n
Perimeter 83687652
Area 437726443579569
Diagonal 29588053.11539

Cube

Length = n
Surface area 2626358661477414
Volume 9.1580745703712E+21
Space diagonal 36237816.307536

Equilateral Triangle

Length = n
Perimeter 62765739
Area 1.8954111002406E+14
Altitude 18118908.153768

Triangular Pyramid

Length = n
Surface area 1.8954111002406E+14
Volume 1.0792894385536E+21
Height 9862684.3717967