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

21082813 (number)

21082813 is an odd 8-digits composite number following 21082812 and preceding 21082814. In scientific notation, it is written as 2.1082813 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 21034780 positive integers (up to 21082813) that are relatively prime to 21082813.

Interesting facts

21082813 has 4 divisors, whose sum is 21130848
The reverse of 21082813 is 31828012
Previous prime number is 443

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	twenty-one million eighty-two thousand eight hundred thirteen

Notation

Scientific notation	2.1082813 × 10^7
Engineering notation	2.1082813 × 10^6

Prime Factorization of 21082813

Prime Factorization 443 × 47591

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21082813	Product of the distinct prime numbers

The prime factorization of 21082813 is 443 × 47591. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 10, 22, 62, 15, 122, 334, 3242, 72692, 76512, 227619, 738916, 6934026, 6307927, 53802084, 29183917, 132425686, 396083127, 1124793942, 1106598584

Basic calculations (n = 21082813)

Multiplication

n×y

n×2	42165626
n×3	63248439
n×4	84331252
n×5	105414065

Division

n÷y

n÷2	10541406.5
n÷3	7027604.3333333
n÷3	5270703.25
n÷5	4216562.6

Exponentiation

n^y

n²	444485003992969
n³	9.370994220488E+21
n⁴	1.9756691877463E+29
n⁵	4.1652664035117E+36

Nth Root

^y√n

²√n	4591.602443592
³√n	276.25460036155
⁴√n	67.761363944301
⁵√n	29.159878584166

Divisors of 21082813

1, 443, 47591, 21082813

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	-21082812	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 21082813 can be divided by 4 positive divisors. The sum of these divisors (counting 21082813) is 1, the average is 0.25.

Base conversion 21082813

Base	System	Value
2	Binary	1010000011011001010111101
3	Ternary	1110200010011221
4	Quaternary	1100123022331
5	Quinary	20344122223
6	Senary	2031513341
8	Octal	120331275
10	Decimal	21082813
12	Duodecimal	7088851
16	Hexadecimal	141b2bd
20	Vigesimal	6bf70d
36	Base36	cjvlp

Cryptographic Hash Functions

md5	eec706bb3b56e1ad0392773724161461
sha1	65e05d7b9a65b36c0b3a405a9434e43461f8a338
sha256	79315233cfbafe690cb42a35ddd56bfe4eaa31fbd6c86ae7eeb60cf5e1882c65
sha512	7e21b278ea31138a9e5bd8ade9c94715af8e463d50f14eb0fc937b7c119cdaa29e87cdfb3766efcb84cf8cff9eca484f86c2df89bf937a04a47e21c82551afc2
ripemd-160	6585a44b8d1295984bba3cb5ecd84ab8e30cdeeb

21082813 as geometric shapes

Circle

Radius = n

Diameter	42165626
Circumference	132467220.87561
Area	1.3963908231751E+15

Sphere

Radius = n

Volume	3.925312879989E+22
Surface area	5.5855632927006E+15
Circumference	132467220.87561

Square

Length = n

Perimeter	84331252
Area	444485003992969
Diagonal	29815600.077576

Cube

Length = n

Surface area	2666910023957814
Volume	9.370994220488E+21
Space diagonal	36516503.282474

Equilateral Triangle

Length = n

Perimeter	63248439
Area	1.9246765252957E+14
Altitude	18258251.641237

Triangular Pyramid

Length = n

Surface area	1.9246765252957E+14
Volume	1.1043822599612E+21
Height	9938533.3591919