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

21308909 (number)

21308909 is an odd 8-digits composite number following 21308908 and preceding 21308910. In scientific notation, it is written as 2.1308909 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 21265020 positive integers (up to 21308909) that are relatively prime to 21308909.

Interesting facts

21308909 has 4 divisors, whose sum is 21352800
The reverse of 21308909 is 90980312
Previous prime number is 491

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	2.1308909 × 10^7
Engineering notation	2.1308909 × 10^6

Prime Factorization of 21308909

Prime Factorization 491 × 43399

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21308909	Product of the distinct prime numbers

The prime factorization of 21308909 is 491 × 43399. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 7, 10, 38, 657, 172, 569, 2575, 56538, 45472, 740407, 564637, 9358574, 3492683, 1107299, 26505684, 328947769, 625821286, 3422023652, 3980060710

Basic calculations (n = 21308909)

Multiplication

n×y

n×2	42617818
n×3	63926727
n×4	85235636
n×5	106544545

Division

n÷y

n÷2	10654454.5
n÷3	7102969.6666667
n÷3	5327227.25
n÷5	4261781.8

Exponentiation

n^y

n²	454069602770281
n³	9.6757278450981E+21
n⁴	2.0617920415996E+29
n⁵	4.393453899137E+36

Nth Root

^y√n

²√n	4616.1573846653
³√n	277.23862627861
⁴√n	67.942309238539
⁵√n	29.222155197831

Divisors of 21308909

1, 491, 43399, 21308909

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	-21308908	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 21308909 can be divided by 4 positive divisors. The sum of these divisors (counting 21308909) is 1, the average is 0.25.

Base conversion 21308909

Base	System	Value
2	Binary	1010001010010010111101101
3	Ternary	1111002121022212
4	Quaternary	1101102113231
5	Quinary	20423341114
6	Senary	2040420205
8	Octal	121222755
10	Decimal	21308909
12	Duodecimal	7177665
16	Hexadecimal	14525ed
20	Vigesimal	6d3c59
36	Base36	coq25

Cryptographic Hash Functions

md5	9e70f3edcb9825411e6c9a6c75369868
sha1	94fb821b58b414dfededb6cb74dd18b970fa4fbf
sha256	50c3077630f90a4edbccd507cf7b9202d52fe25e18bdd8feb39c9f245f9b1f14
sha512	1ec2d58b8925d2de42df4fa78ad0d1350faa595f879fbfbe4102d60e23831949b29c571d7f4c5624dcec83d670b6ac78bd72d523dfb09003591a530c76c0ad51
ripemd-160	43e75ecabb640e5a5a851858a5f416235db91db6

21308909 as geometric shapes

Circle

Radius = n

Diameter	42617818
Circumference	133887823.94083
Area	1.4265017282816E+15

Sphere

Radius = n

Volume	4.0529594021726E+22
Surface area	5.7060069131262E+15
Circumference	133887823.94083

Square

Length = n

Perimeter	85235636
Area	454069602770281
Diagonal	30135348.107174

Cube

Length = n

Surface area	2724417616621686
Volume	9.6757278450981E+21
Space diagonal	36908113.041862

Equilateral Triangle

Length = n

Perimeter	63926727
Area	1.9661790554269E+14
Altitude	18454056.520931

Triangular Pyramid

Length = n

Surface area	1.9661790554269E+14
Volume	1.1402954620307E+21
Height	10045116.035725