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

21105813 (number)

21105813 is an odd 8-digits composite number following 21105812 and preceding 21105814. In scientific notation, it is written as 2.1105813 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 14057888 positive integers (up to 21105813) that are relatively prime to 21105813.

Interesting facts

21105813 has 8 divisors, whose sum is 28166400
The reverse of 21105813 is 31850112
Previous prime number is 1439

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	twenty-one million one hundred five thousand eight hundred thirteen

Notation

Scientific notation	2.1105813 × 10^7
Engineering notation	2.1105813 × 10^6

Prime Factorization of 21105813

Prime Factorization 3 × 1439 × 4889

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21105813	Product of the distinct prime numbers

The prime factorization of 21105813 is 3 × 1439 × 4889. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 3, 47, 53, 660, 668, 2267, 8311, 7607, 67510, 53894, 198522, 1155468, 5242689, 17965321, 59016381, 398549762, 456783735, 5393883205, 5895225794

Basic calculations (n = 21105813)

Multiplication

n×y

n×2	42211626
n×3	63317439
n×4	84423252
n×5	105529065

Division

n÷y

n÷2	10552906.5
n÷3	7035271
n÷3	5276453.25
n÷5	4221162.6

Exponentiation

n^y

n²	445455342390969
n³	9.4016971563548E+21
n⁴	1.9843046206466E+29
n⁵	4.1880362258402E+36

Nth Root

^y√n

²√n	4594.1063331186
³√n	276.35502254995
⁴√n	67.779837216672
⁵√n	29.16623812198

Divisors of 21105813

1, 3, 1439, 4317, 4889, 14667, 7035271, 21105813

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	-21105812	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 21105813 can be divided by 8 positive divisors. The sum of these divisors (counting 21105813) is 1, the average is 0.125.

Base conversion 21105813

Base	System	Value
2	Binary	1010000100000110010010101
3	Ternary	1110201021201210
4	Quaternary	1100200302111
5	Quinary	20400341223
6	Senary	2032212033
8	Octal	120406225
10	Decimal	21105813
12	Duodecimal	709a019
16	Hexadecimal	1420c95
20	Vigesimal	6bi4ad
36	Base36	ckdcl

Cryptographic Hash Functions

md5	cde878c9653bb8ba6470476559672643
sha1	36b181724d13cc207356a8ccc5308eaf88b7eaeb
sha256	02ea5003c8dbeb93fe43ccd818f412df880927c89dac80ac30fe6fe97c5ea056
sha512	bc3ffbf600e6e77381129a279830e7f550a51c15d7b2e732bf6da6707d56f2514f7bda2cad01f0031cfa3e4cdc61b28c39f15ba4c5fd99c609fc70518afdaf7b
ripemd-160	186b32b9e773fc602b5d7010f597f07422627e35

21105813 as geometric shapes

Circle

Radius = n

Diameter	42211626
Circumference	132611734.13768
Area	1.3994392311578E+15

Sphere

Radius = n

Volume	3.9381736956907E+22
Surface area	5.5977569246312E+15
Circumference	132611734.13768

Square

Length = n

Perimeter	84423252
Area	445455342390969
Diagonal	29848126.98951

Cube

Length = n

Surface area	2672732054345814
Volume	9.4016971563548E+21
Space diagonal	36556340.451048

Equilateral Triangle

Length = n

Perimeter	63317439
Area	1.9288782138104E+14
Altitude	18278170.225524

Triangular Pyramid

Length = n

Surface area	1.9288782138104E+14
Volume	1.1080006356535E+21
Height	9949375.6631701