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

21031809 (number)

21031809 is an odd 8-digits composite number following 21031808 and preceding 21031810. In scientific notation, it is written as 2.1031809 × 10^7. The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors. There are 14021204 positive integers (up to 21031809) that are relatively prime to 21031809.

Interesting facts

21031809 has 4 divisors, whose sum is 28042416
The reverse of 21031809 is 90813012
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6

Name

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

Notation

Scientific notation	2.1031809 × 10^7
Engineering notation	2.1031809 × 10^6

Prime Factorization of 21031809

Prime Factorization 3 × 7010603

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21031809	Product of the distinct prime numbers

The prime factorization of 21031809 is 3 × 7010603. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 4, 23, 14, 862, 255, 1538, 3394, 51437, 32372, 897244, 914676, 2382828, 4637863, 2456046, 23283847, 95383747, 536644721, 9162145124, 6398326322

Basic calculations (n = 21031809)

Multiplication

n×y

n×2	42063618
n×3	63095427
n×4	84127236
n×5	105159045

Division

n÷y

n÷2	10515904.5
n÷3	7010603
n÷3	5257952.25
n÷5	4206361.8

Exponentiation

n^y

n²	442336989812481
n³	9.303147083371E+21
n⁴	1.9566201255637E+29
n⁵	4.1151260766411E+36

Nth Root

^y√n

²√n	4586.0450281261
³√n	276.03164675975
⁴√n	67.720344270582
⁵√n	29.145756068781

Divisors of 21031809

1, 3, 7010603, 21031809

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	-21031808	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 21031809 can be divided by 4 positive divisors. The sum of these divisors (counting 21031809) is 1, the average is 0.25.

Base conversion 21031809

Base	System	Value
2	Binary	1010000001110101110000001
3	Ternary	1110120112012220
4	Quaternary	1100032232001
5	Quinary	20341004214
6	Senary	2030441253
8	Octal	120165601
10	Decimal	21031809
12	Duodecimal	7063229
16	Hexadecimal	140eb81
20	Vigesimal	6b8ja9
36	Base36	cis8x

Cryptographic Hash Functions

md5	606cbd2eb5ded5c190f927216ff8128b
sha1	6764d69b2d91de104c6c28bac889c67fab663e8b
sha256	0a19c288a76eba6600acbd7f3384e5865d13e88c8c12ecefcfd5ab380a8b86e4
sha512	b5a7ac1e6bbcac94868ba6052af20849cc8cfc665c9744f7f6267de0711dbfa4465be68c1f2a992b9b3d8beb16f972484560f7c1b67f7eab24657dc5dbe3f9ab
ripemd-160	24c60cd09fae271cc204a21d85f79b8011d9a385

21031809 as geometric shapes

Circle

Radius = n

Diameter	42063618
Circumference	132146753.29221
Area	1.3896426376059E+15

Sphere

Radius = n

Volume	3.8968931376512E+22
Surface area	5.5585705504237E+15
Circumference	132146753.29221

Square

Length = n

Perimeter	84127236
Area	442336989812481
Diagonal	29743469.529041

Cube

Length = n

Surface area	2654021938874886
Volume	9.303147083371E+21
Space diagonal	36428161.763084

Equilateral Triangle

Length = n

Perimeter	63095427
Area	1.9153753510557E+14
Altitude	18214080.881542

Triangular Pyramid

Length = n

Surface area	1.9153753510557E+14
Volume	1.0963863981713E+21
Height	9914489.8430135