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

21131809 (number)

21131809 is an odd 8-digits composite number following 21131808 and preceding 21131810. In scientific notation, it is written as 2.1131809 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 21002004 positive integers (up to 21131809) that are relatively prime to 21131809.

Interesting facts

21131809 has 4 divisors, whose sum is 21261616
The reverse of 21131809 is 90813112
Previous prime number is 163

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

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

Notation

Scientific notation	2.1131809 × 10^7
Engineering notation	2.1131809 × 10^6

Prime Factorization of 21131809

Prime Factorization 163 × 129643

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21131809	Product of the distinct prime numbers

The prime factorization of 21131809 is 163 × 129643. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 9, 19, 30, 693, 180, 41, 831, 96943, 37178, 940384, 298038, 2323674, 4128431, 51598381, 63975496, 742110129, 970303217, 9156648201, 1361055763

Basic calculations (n = 21131809)

Multiplication

n×y

n×2	42263618
n×3	63395427
n×4	84527236
n×5	105659045

Division

n÷y

n÷2	10565904.5
n÷3	7043936.3333333
n÷3	5282952.25
n÷5	4226361.8

Exponentiation

n^y

n²	446553351612481
n³	9.4364801345848E+21
n⁴	1.9940989583634E+29
n⁵	4.2138918315234E+36

Nth Root

^y√n

²√n	4596.9347395846
³√n	276.46843802817
⁴√n	67.800698665903
⁵√n	29.173419387632

Divisors of 21131809

1, 163, 129643, 21131809

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	-21131808	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 21131809 can be divided by 4 positive divisors. The sum of these divisors (counting 21131809) is 1, the average is 0.25.

Base conversion 21131809

Base	System	Value
2	Binary	1010000100111001000100001
3	Ternary	1110202121101121
4	Quaternary	1100213020201
5	Quinary	20402204214
6	Senary	2032532241
8	Octal	120471041
10	Decimal	21131809
12	Duodecimal	70b1081
16	Hexadecimal	1427221
20	Vigesimal	6c19a9
36	Base36	ckxep

Cryptographic Hash Functions

md5	8908ad5201cc8c23a941b4445cb92c54
sha1	28ef1a467bd5faaad24d3ced38b2426096763023
sha256	0549409effa975f8b5322131a274582aa437c32c2d7939c16c57dac7c0d9f5ef
sha512	470a47e74e220e5b23a9e395b7e833d9051e62cfbba0f4c0bd64d1e025bb8ca35f5727532b0291207c5274567ac84ad5f929ba82550473137ddbadb681b20342
ripemd-160	47001edde09ee8f679ca78453ddabcf9a1a69061

21131809 as geometric shapes

Circle

Radius = n

Diameter	42263618
Circumference	132775071.82293
Area	1.4028887288617E+15

Sphere

Radius = n

Volume	3.952743555541E+22
Surface area	5.6115549154467E+15
Circumference	132775071.82293

Square

Length = n

Perimeter	84527236
Area	446553351612481
Diagonal	29884890.885278

Cube

Length = n

Surface area	2679320109674886
Volume	9.4364801345848E+21
Space diagonal	36601366.843841

Equilateral Triangle

Length = n

Perimeter	63395427
Area	1.9336327332075E+14
Altitude	18300683.421921

Triangular Pyramid

Length = n

Surface area	1.9336327332075E+14
Volume	1.1120998489495E+21
Height	9961630.2950926