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

21081838 (number)

21081838 is an even 8-digits composite number following 21081837 and preceding 21081839. In scientific notation, it is written as 2.1081838 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 10540918 positive integers (up to 21081838) that are relatively prime to 21081838.

Interesting facts

21081838 has 4 divisors, whose sum is 31622760
The reverse of 21081838 is 83818012
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	twenty-one million eighty-one thousand eight hundred thirty-eight

Notation

Scientific notation	2.1081838 × 10^7
Engineering notation	2.1081838 × 10^6

Prime Factorization of 21081838

Prime Factorization 2 × 10540919

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21081838	Product of the distinct prime numbers

The prime factorization of 21081838 is 2 × 10540919. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 1, 54, 69, 124, 655, 5757, 5152, 39404, 54097, 249566, 208865, 9755219, 3537822, 17622042, 34659772, 790168199, 955822808, 3565447099, 8654876557

Basic calculations (n = 21081838)

Multiplication

n×y

n×2	42163676
n×3	63245514
n×4	84327352
n×5	105409190

Division

n÷y

n÷2	10540919
n÷3	7027279.3333333
n÷3	5270459.5
n÷5	4216367.6

Exponentiation

n^y

n²	444443893458244
n³	9.369694161976E+21
n⁴	1.9753037443232E+29
n⁵	4.1643033538616E+36

Nth Root

^y√n

²√n	4591.4962702805
³√n	276.25034172067
⁴√n	67.760580504306
⁵√n	29.159608872457

Divisors of 21081838

1, 2, 10540919, 21081838

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	-21081837	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 21081838 can be divided by 4 positive divisors. The sum of these divisors (counting 21081838) is 1, the average is 0.25.

Base conversion 21081838

Base	System	Value
2	Binary	1010000011010111011101110
3	Ternary	1110200001211211
4	Quaternary	1100122323232
5	Quinary	20344104323
6	Senary	2031505034
8	Octal	120327356
10	Decimal	21081838
12	Duodecimal	708817a
16	Hexadecimal	141aeee
20	Vigesimal	6bf4bi
36	Base36	cjuum

Cryptographic Hash Functions

md5	a438b4d641d08e773f7d1a2b546d3b9c
sha1	92c2a02b97cfb1b0212821cdd8d8c17048e540a7
sha256	969d722b394d4c7497db34bc4f24973289d4bf8212365e7cad0dc9aeaf68aa59
sha512	a6afb5d947e910c2dc6488be72ee991d263f74950e30a31ef1f6cd6f1c70c42eed73bdecb27cb494f242cafcf108c8e0d5d46860d97b0a0f1c37205b6425f6dd
ripemd-160	29689afcbd7d690f48e87fbcb4b17ddd7f240d67

21081838 as geometric shapes

Circle

Radius = n

Diameter	42163676
Circumference	132461094.76994
Area	1.3962616706213E+15

Sphere

Radius = n

Volume	3.9247683127529E+22
Surface area	5.5850466824851E+15
Circumference	132461094.76994

Square

Length = n

Perimeter	84327352
Area	444443893458244
Diagonal	29814221.219352

Cube

Length = n

Surface area	2666663360749464
Volume	9.369694161976E+21
Space diagonal	36514814.532936

Equilateral Triangle

Length = n

Perimeter	63245514
Area	1.9244985114585E+14
Altitude	18257407.266468

Triangular Pyramid

Length = n

Surface area	1.9244985114585E+14
Volume	1.1042290465962E+21
Height	9938073.7397842