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

21123209 (number)

21123209 is an odd 8-digits composite number following 21123208 and preceding 21123210. In scientific notation, it is written as 2.1123209 × 10^7. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 21110340 positive integers (up to 21123209) that are relatively prime to 21123209.

Interesting facts

21123209 has 4 divisors, whose sum is 21136080
The reverse of 21123209 is 90232112
Previous prime number is 10939

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2

Name

Name	twenty-one million one hundred twenty-three thousand two hundred nine

Notation

Scientific notation	2.1123209 × 10^7
Engineering notation	2.1123209 × 10^6

Prime Factorization of 21123209

Prime Factorization 10939 × 1931

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21123209	Product of the distinct prime numbers

The prime factorization of 21123209 is 10939 × 1931. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 9, 52, 67, 229, 907, 9032, 9011, 87649, 39944, 411711, 540202, 9920184, 6820460, 91476980, 92520638, 27314489, 256668312, 5909043714, 8178837668

Basic calculations (n = 21123209)

Multiplication

n×y

n×2	42246418
n×3	63369627
n×4	84492836
n×5	105616045

Division

n÷y

n÷2	10561604.5
n÷3	7041069.6666667
n÷3	5280802.25
n÷5	4224641.8

Exponentiation

n^y

n²	446189958457681
n³	9.4249637462029E+21
n⁴	1.9908547902847E+29
n⁵	4.2053241823834E+36

Nth Root

^y√n

²√n	4595.9992384682
³√n	276.4309282062
⁴√n	67.793799410183
⁵√n	29.171044463093

Divisors of 21123209

1, 1931, 10939, 21123209

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	-21123208	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 21123209 can be divided by 4 positive divisors. The sum of these divisors (counting 21123209) is 1, the average is 0.25.

Base conversion 21123209

Base	System	Value
2	Binary	1010000100101000010001001
3	Ternary	1110202011121002
4	Quaternary	1100211002021
5	Quinary	20401420314
6	Senary	2032424345
8	Octal	120450211
10	Decimal	21123209
12	Duodecimal	70a80b5
16	Hexadecimal	1425089
20	Vigesimal	6c0809
36	Base36	ckqrt

Cryptographic Hash Functions

md5	b4484f67bff826c3ea2b8d07cd0692e6
sha1	f1a65e5dcf9bba517a23a63dee1bc0747b56e180
sha256	d79e13260f02ab5de2b7e2a63ed578fb3279dae6a359ba480803a886e101f1fd
sha512	523d37547102445d6de970bedbe307158537183eb1e2c41c549106aceb2f963e98d9b241b0c308beed1162a4bac1644f5b606f32fe313c0cc7db10b95f1ccde3
ripemd-160	a853f5b2b5c42a8567a1100fd7f2bd259001cd5d

21123209 as geometric shapes

Circle

Radius = n

Diameter	42246418
Circumference	132721036.42928
Area	1.4017470955962E+15

Sphere

Radius = n

Volume	3.9479195820562E+22
Surface area	5.6069883823847E+15
Circumference	132721036.42928

Square

Length = n

Perimeter	84492836
Area	446189958457681
Diagonal	29872728.648641

Cube

Length = n

Surface area	2677139750746086
Volume	9.4249637462029E+21
Space diagonal	36586471.206896

Equilateral Triangle

Length = n

Perimeter	63369627
Area	1.9320591946894E+14
Altitude	18293235.603448

Triangular Pyramid

Length = n

Surface area	1.9320591946894E+14
Volume	1.1107426295629E+21
Height	9957576.2162138