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

21090909 (number)

21090909 is an odd 8-digits composite number following 21090908 and preceding 21090910. In scientific notation, it is written as 2.1090909 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 11973312 positive integers (up to 21090909) that are relatively prime to 21090909.

Interesting facts

21090909 has 8 divisors, whose sum is 22239448
The reverse of 21090909 is 90909012
Previous prime number is 157

Basic properties

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

Name

Name	twenty-one million ninety thousand nine hundred nine

Notation

Scientific notation	2.1090909 × 10^7
Engineering notation	2.1090909 × 10^6

Prime Factorization of 21090909

Prime Factorization 21 × 157 × 6397

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21090909	Product of the distinct prime numbers

The prime factorization of 21090909 is 21 × 157 × 6397. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 1, 37, 43, 673, 273, 38, 3717, 50145, 46780, 943121, 115421, 1930585, 3667104, 68733917, 396367, 960440475, 359995465, 1067827924, 3494660

Basic calculations (n = 21090909)

Multiplication

n×y

n×2	42181818
n×3	63272727
n×4	84363636
n×5	105454545

Division

n÷y

n÷2	10545454.5
n÷3	7030303
n÷3	5272727.25
n÷5	4218181.8

Exponentiation

n^y

n²	444826442446281
n³	9.3817940184282E+21
n⁴	1.9787056389941E+29
n⁵	4.1732700569812E+36

Nth Root

^y√n

²√n	4592.4839683988
³√n	276.28995729769
⁴√n	67.767868259219
⁵√n	29.162117774191

Divisors of 21090909

1, 21, 157, 3297, 6397, 134337, 1004329, 21090909

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	-21090908	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 21090909 can be divided by 8 positive divisors. The sum of these divisors (counting 21090909) is 1, the average is 0.125.

Base conversion 21090909

Base	System	Value
2	Binary	1010000011101001001011101
3	Ternary	1110200112021210
4	Quaternary	1100131021131
5	Quinary	20344402114
6	Senary	2032015033
8	Octal	120351135
10	Decimal	21090909
12	Duodecimal	7091479
16	Hexadecimal	141d25d
20	Vigesimal	6bg759
36	Base36	ck1ul

Cryptographic Hash Functions

md5	c57bb778e8ed2719334dc7015b63f641
sha1	6cb2578807e66f8fd7b4020c5f7f39dbf66d9ab6
sha256	67a3dc9e0e37d7beed7457c430b4686160d611f8b9032bdb6c81bae3dd326cca
sha512	6fc25c9396e5ebfb6ac134cae09a3b08fb19d3de5125cd74d47cb18194a10514dd832b0e4c9425b3ae802eacfe6c5389b533d34c0978b3b2514f3f2b8601296e
ripemd-160	0db8d2be219773d627f374af557b56bbb12029e5

21090909 as geometric shapes

Circle

Radius = n

Diameter	42181818
Circumference	132518089.54386
Area	1.3974634837117E+15

Sphere

Radius = n

Volume	3.9298366887716E+22
Surface area	5.5898539348469E+15
Circumference	132518089.54386

Square

Length = n

Perimeter	84363636
Area	444826442446281
Diagonal	29827049.550577

Cube

Length = n

Surface area	2668958654677686
Volume	9.3817940184282E+21
Space diagonal	36530525.965812

Equilateral Triangle

Length = n

Perimeter	63272727
Area	1.9261549971677E+14
Altitude	18265262.982906

Triangular Pyramid

Length = n

Surface area	1.9261549971677E+14
Volume	1.1056550283543E+21
Height	9942349.8501923