Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20421815 (number)

20421815 is an odd 8-digits composite number following 20421814 and preceding 20421816. In scientific notation, it is written as 2.0421815 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 15549600 positive integers (up to 20421815) that are relatively prime to 20421815.

Interesting facts

20421815 has 8 divisors, whose sum is 20701824
The reverse of 20421815 is 51812402
Previous prime number is 311

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty million four hundred twenty-one thousand eight hundred fifteen

Notation

Scientific notation	2.0421815 × 10^7
Engineering notation	2.0421815 × 10^6

Prime Factorization of 20421815

Prime Factorization 115 × 311 × 571

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20421815	Product of the distinct prime numbers

The prime factorization of 20421815 is 115 × 311 × 571. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 2, 69, 7, 813, 488, 3513, 9818, 33787, 90251, 245351, 207518, 8203280, 2372128, 63409678, 71712511, 26139021, 998299232, 9627001590, 8205998666

Basic calculations (n = 20421815)

Multiplication

n×y

n×2	40843630
n×3	61265445
n×4	81687260
n×5	102109075

Division

n÷y

n÷2	10210907.5
n÷3	6807271.6666667
n÷3	5105453.75
n÷5	4084363

Exponentiation

n^y

n²	417050527894225
n³	8.5169287263082E+21
n⁴	1.7393114281685E+29
n⁵	3.5519896213443E+36

Nth Root

^y√n

²√n	4519.0502320731
³√n	273.33680427214
⁴√n	67.22388141184
⁵√n	28.974694628691

Divisors of 20421815

1, 115, 311, 571, 35765, 65665, 177581, 20421815

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20421814	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20421815 can be divided by 8 positive divisors. The sum of these divisors (counting 20421815) is 1, the average is 0.125.

Base conversion 20421815

Base	System	Value
2	Binary	1001101111001110010110111
3	Ternary	1102102112110112
4	Quaternary	1031321302313
5	Quinary	20211444230
6	Senary	2005413235
8	Octal	115716267
10	Decimal	20421815
12	Duodecimal	6a0a21b
16	Hexadecimal	1379cb7
20	Vigesimal	67ceaf
36	Base36	c5pkn

Cryptographic Hash Functions

md5	880930dcfc2543715959f589e077a1a7
sha1	fe777bf3a708425317598ad28f2bacb2e7cdc50a
sha256	e9a33948a5df22f02913bc02e690381517264c6b5850ce00bd5e64093ee00e02
sha512	7dc6a964a1977f6bb89d7badfe5240cfd207edfb5c5d7cf393342c3b068f3496e18a4e8917ab4aaaecf0c6335b5cd0b240b6e6c0f664c907eb2d0f909be24f66
ripemd-160	d9242366840645a6683d62386de9e325c8197e36

20421815 as geometric shapes

Circle

Radius = n

Diameter	40843630
Circumference	128314047.95394
Area	1.3102028746082E+15

Sphere

Radius = n

Volume	3.5675627623624E+22
Surface area	5.240811498433E+15
Circumference	128314047.95394

Square

Length = n

Perimeter	81687260
Area	417050527894225
Diagonal	28880807.741274

Cube

Length = n

Surface area	2502303167365350
Volume	8.5169287263082E+21
Space diagonal	35371621.162772

Equilateral Triangle

Length = n

Perimeter	61265445
Area	1.8058817590905E+14
Altitude	17685810.581386

Triangular Pyramid

Length = n

Surface area	1.8058817590905E+14
Volume	1.0037296762092E+21
Height	9626935.9137581