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

21131918 (number)

21131918 is an even 8-digits composite number following 21131917 and preceding 21131919. In scientific notation, it is written as 2.1131918 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 9944416 positive integers (up to 21131918) that are relatively prime to 21131918.

Interesting facts

21131918 has 8 divisors, whose sum is 33562512
The reverse of 21131918 is 81913112
Previous prime number is 17

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8

Name

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

Notation

Scientific notation	2.1131918 × 10^7
Engineering notation	2.1131918 × 10^6

Prime Factorization of 21131918

Prime Factorization 2 × 17 × 621527

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21131918	Product of the distinct prime numbers

The prime factorization of 21131918 is 2 × 17 × 621527. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 3, 45, 29, 900, 330, 591, 4941, 43329, 6106, 645252, 372049, 5155324, 3719319, 48422285, 54146173, 685362914, 947452350, 7928761828, 3894235171

Basic calculations (n = 21131918)

Multiplication

n×y

n×2	42263836
n×3	63395754
n×4	84527672
n×5	105659590

Division

n÷y

n÷2	10565959
n÷3	7043972.6666667
n÷3	5282979.5
n÷5	4226383.6

Exponentiation

n^y

n²	446557958358724
n³	9.436626158284E+21
n⁴	1.9941401017351E+29
n⁵	4.2140005110378E+36

Nth Root

^y√n

²√n	4596.9465952956
³√n	276.46891337804
⁴√n	67.800786096443
⁵√n	29.173449483457

Divisors of 21131918

1, 2, 17, 34, 621527, 1243054, 10565959, 21131918

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	-21131917	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 21131918 can be divided by 8 positive divisors. The sum of these divisors (counting 21131918) is 1, the average is 0.125.

Base conversion 21131918

Base	System	Value
2	Binary	1010000100111001010001110
3	Ternary	1110202121112122
4	Quaternary	1100213022032
5	Quinary	20402210133
6	Senary	2032532542
8	Octal	120471216
10	Decimal	21131918
12	Duodecimal	70b1152
16	Hexadecimal	142728e
20	Vigesimal	6c19fi
36	Base36	ckxhq

Cryptographic Hash Functions

md5	6b9adbbf089c204a7e8440f639a91a41
sha1	d65511a228166d55a62bef4d19669f7719307092
sha256	5ad17f683361ad488d2179f45252603feea02303e408bbcddf0f270a6117b018
sha512	a89f055907c5ef60e50f8483cba3340e1bd0d1ffb5b870e909121215536c2bbc545ed508bca0fd872675522e8599a7f8bc08120d47cdb78864ed5d375db46099
ripemd-160	8ff0988acf1daee4e77041eaef8075beba5e58d8

21131918 as geometric shapes

Circle

Radius = n

Diameter	42263836
Circumference	132775756.69012
Area	1.4029032013818E+15

Sphere

Radius = n

Volume	3.9528047218051E+22
Surface area	5.6116128055273E+15
Circumference	132775756.69012

Square

Length = n

Perimeter	84527672
Area	446557958358724
Diagonal	29885045.034556

Cube

Length = n

Surface area	2679347750152344
Volume	9.436626158284E+21
Space diagonal	36601555.637379

Equilateral Triangle

Length = n

Perimeter	63395754
Area	1.9336526810038E+14
Altitude	18300777.81869

Triangular Pyramid

Length = n

Surface area	1.9336526810038E+14
Volume	1.1121170580075E+21
Height	9961681.6781854