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

20991009 (number)

20991009 is an odd 8-digits composite number following 20991008 and preceding 20991010. In scientific notation, it is written as 2.0991009 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 12616128 positive integers (up to 20991009) that are relatively prime to 20991009.

Interesting facts

20991009 has 8 divisors, whose sum is 28040320
The reverse of 20991009 is 90019902
Previous prime number is 559

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

Name	twenty million nine hundred ninety-one thousand nine

Notation

Scientific notation	2.0991009 × 10^7
Engineering notation	2.0991009 × 10^6

Prime Factorization of 20991009

Prime Factorization 3 × 559 × 12517

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20991009	Product of the distinct prime numbers

The prime factorization of 20991009 is 3 × 559 × 12517. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 8, 66, 81, 796, 74, 2379, 4253, 60921, 10530, 924388, 825769, 8577903, 1822391, 17885033, 70168757, 841422187, 767553352, 4340950328, 1294157271

Basic calculations (n = 20991009)

Multiplication

n×y

n×2	41982018
n×3	62973027
n×4	83964036
n×5	104955045

Division

n÷y

n÷2	10495504.5
n÷3	6997003
n÷3	5247752.25
n÷5	4198201.8

Exponentiation

n^y

n²	440622458838081
n³	9.2491099990723E+21
n⁴	1.9414815123252E+29
n⁵	4.0753655898551E+36

Nth Root

^y√n

²√n	4581.5945914059
³√n	275.85303822826
⁴√n	67.687477360335
⁵√n	29.134439204289

Divisors of 20991009

1, 3, 559, 1677, 12517, 37551, 6997003, 20991009

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	-20991008	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 20991009 can be divided by 8 positive divisors. The sum of these divisors (counting 20991009) is 1, the average is 0.125.

Base conversion 20991009

Base	System	Value
2	Binary	1010000000100110000100001
3	Ternary	1110111110020210
4	Quaternary	1100010300201
5	Quinary	20333203014
6	Senary	2025524333
8	Octal	120046041
10	Decimal	20991009
12	Duodecimal	70436a9
16	Hexadecimal	1404c21
20	Vigesimal	6b3ha9
36	Base36	chwrl

Cryptographic Hash Functions

md5	13803eb39ee56a7074d5b748191cf55d
sha1	e9c9e8f7862dedcc6f46d7c1d3d06c978488600e
sha256	d8fdf4704070322ca373436388a005539d01fa7302c0c916af4783c0f06d9387
sha512	771e6a6b7822072379c3207295258887b269aafaac125d40dc00fba9319a6b73e7331c6721c86976f775c2848ec2ff22388acabd4cca11053e7838ae0e5a76f3
ripemd-160	5ac9cc3b3125f67ce3b8f7cb0ef3f04a48303cb9

20991009 as geometric shapes

Circle

Radius = n

Diameter	41982018
Circumference	131890399.33167
Area	1.3842562796924E+15

Sphere

Radius = n

Volume	3.8742581367106E+22
Surface area	5.5370251187695E+15
Circumference	131890399.33167

Square

Length = n

Perimeter	83964036
Area	440622458838081
Diagonal	29685769.615696

Cube

Length = n

Surface area	2643734753028486
Volume	9.2491099990723E+21
Space diagonal	36357494.090136

Equilateral Triangle

Length = n

Perimeter	62973027
Area	1.9079512141587E+14
Altitude	18178747.045068

Triangular Pyramid

Length = n

Surface area	1.9079512141587E+14
Volume	1.0900180667141E+21
Height	9895256.5385652