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

21087866 (number)

21087866 is an even 8-digits composite number following 21087865 and preceding 21087867. In scientific notation, it is written as 2.1087866 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 10268304 positive integers (up to 21087866) that are relatively prime to 21087866.

Interesting facts

21087866 has 8 divisors, whose sum is 31671444
The reverse of 21087866 is 66878012
Previous prime number is 12361

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	twenty-one million eighty-seven thousand eight hundred sixty-six

Notation

Scientific notation	2.1087866 × 10^7
Engineering notation	2.1087866 × 10^6

Prime Factorization of 21087866

Prime Factorization 2 × 12361 × 853

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21087866	Product of the distinct prime numbers

The prime factorization of 21087866 is 2 × 12361 × 853. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 2, 66, 43, 504, 616, 3630, 3078, 16559, 16294, 758718, 933513, 7326505, 5069915, 83363748, 64988141, 989180300, 602621441, 6306875024, 1495080676

Basic calculations (n = 21087866)

Multiplication

n×y

n×2	42175732
n×3	63263598
n×4	84351464
n×5	105439330

Division

n÷y

n÷2	10543933
n÷3	7029288.6666667
n÷3	5271966.5
n÷5	4217573.2

Exponentiation

n^y

n²	444698092433956
n³	9.3777337837029E+21
n⁴	1.977563934144E+29
n⁵	4.1702603249661E+36

Nth Root

^y√n

²√n	4592.152654257
³√n	276.27666893764
⁴√n	67.765423737014
⁵√n	29.161276222542

Divisors of 21087866

1, 2, 853, 1706, 12361, 24722, 10543933, 21087866

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	-21087865	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 21087866 can be divided by 8 positive divisors. The sum of these divisors (counting 21087866) is 1, the average is 0.125.

Base conversion 21087866

Base	System	Value
2	Binary	1010000011100011001111010
3	Ternary	1110200101010002
4	Quaternary	1100130121322
5	Quinary	20344302431
6	Senary	2031553002
8	Octal	120343172
10	Decimal	21087866
12	Duodecimal	708b762
16	Hexadecimal	141c67a
20	Vigesimal	6bfjd6
36	Base36	cjzi2

Cryptographic Hash Functions

md5	e744e2a65a1847f83facfbf8d884ed94
sha1	6d44153ae18616d5486e6cf5ee67ef4ab4d24ba7
sha256	3cf7f327b258a823084204daf595a06401e796cb275fb2a4e0cb62459a3b93b7
sha512	72dbbd6519f7bf6307c5f7ccfd6f2cb861d87cb59cc015c8b9c05bbf13173664971cd86a3b4e32bc00841674b18710f6adb412cdddc004250788f31a9f6a0377
ripemd-160	08bc4c9d9450314a3fa547833bea63db83611f28

21087866 as geometric shapes

Circle

Radius = n

Diameter	42175732
Circumference	132498969.81097
Area	1.3970602602559E+15

Sphere

Radius = n

Volume	3.9281359416269E+22
Surface area	5.5882410410236E+15
Circumference	132498969.81097

Square

Length = n

Perimeter	84351464
Area	444698092433956
Diagonal	29822746.098706

Cube

Length = n

Surface area	2668188554603736
Volume	9.3777337837029E+21
Space diagonal	36525255.335204

Equilateral Triangle

Length = n

Perimeter	63263598
Area	1.9255992253114E+14
Altitude	18262627.667602

Triangular Pyramid

Length = n

Surface area	1.9255992253114E+14
Volume	1.1051765251031E+21
Height	9940915.3662355