20921565 (number)

20921565 is an odd 8-digits composite number following 20921564 and preceding 20921566. In scientific notation, it is written as 2.0921565 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 9059904 positive integers (up to 20921565) that are relatively prime to 20921565.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand five hundred sixty-five

Notation

Scientific notation 2.0921565 × 10^7
Engineering notation 2.0921565 × 10^6

Prime Factorization of 20921565

Prime Factorization 15 × 7 × 19 × 10487

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20921565
Product of the distinct prime numbers

The prime factorization of 20921565 is 15 × 7 × 19 × 10487. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 2, 38, 90, 460, 985, 8856, 3477, 80407, 64218, 766125, 823724, 1523667, 6835753, 13324070, 44523968, 432041254, 855435672, 706648762, 3116283526

Basic calculations (n = 20921565)

Multiplication

n×y
n×2 41843130
n×3 62764695
n×4 83686260
n×5 104607825

Division

n÷y
n÷2 10460782.5
n÷3 6973855
n÷3 5230391.25
n÷5 4184313

Exponentiation

ny
n2 437711882049225
n3 9.1576175915652E+21
n4 1.9159169168707E+29
n5 4.0083980310911E+36

Nth Root

y√n
2√n 4574.0097288921
3√n 275.54850304844
4√n 67.631425601507
5√n 29.11513670522

Divisors of 20921565

1, 7, 15, 19, 105, 133, 285, 1995, 10487, 73409, 157305, 199253, 1101135, 1394771, 2988795, 20921565

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921564
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921565 can be divided by 16 positive divisors. The sum of these divisors (counting 20921565) is 1, the average is 0.0625.

Base conversion 20921565

Base System Value
2 Binary 1001111110011110011011101
3 Ternary 1110100220222210
4 Quaternary 1033303303131
5 Quinary 20323442230
6 Senary 2024231033
8 Octal 117636335
10 Decimal 20921565
12 Duodecimal 700b479
16 Hexadecimal 13f3cdd
20 Vigesimal 6af3i5
36 Base36 cgf6l

Cryptographic Hash Functions

md5 1889158658db6b0cabd69a913e48820c
sha1 30ce31bdac1a98d3651a236414015237447f6988
sha256 84082380d2b5a50dfa8dae8f2c647af7b631b17ad9bbc9a6002ff436aadee1bf
sha512 4cca82372467b9fd8d9db189526fd365958131b3e1a3441bcb19a34148136b8fe39bd44b5d84b35e60241083af970276822eccf0ee990528b36d1418b8fdcc5e
ripemd-160 f30cdde16b736bc9b498b6701ade4af1a14ca174

20921565 as geometric shapes

Circle

Radius = n
Diameter 41843130
Circumference 131454069.8112
Area 1.3751124330348E+15

Sphere

Radius = n
Volume 3.8359338866728E+22
Surface area 5.5004497321392E+15
Circumference 131454069.8112

Square

Length = n
Perimeter 83686260
Area 437711882049225
Diagonal 29587560.96907

Cube

Length = n
Surface area 2626271292295350
Volume 9.1576175915652E+21
Space diagonal 36237213.553855

Equilateral Triangle

Length = n
Perimeter 62764695
Area 1.8953480469646E+14
Altitude 18118606.776927

Triangular Pyramid

Length = n
Surface area 1.8953480469646E+14
Volume 1.0792355830848E+21
Height 9862520.3230234