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

21086491 (number)

21086491 is an odd 8-digits prime number following 21086490 and preceding 21086492. In scientific notation, it is written as 2.1086491 × 10^7. The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors. There are 21086490 positive integers (up to 21086491) that are relatively prime to 21086491.

Interesting facts

21086491 has 2 divisors, whose sum is 21086492
The reverse of 21086491 is 19468012
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	twenty-one million eighty-six thousand four hundred ninety-one

Notation

Scientific notation	2.1086491 × 10^7
Engineering notation	2.1086491 × 10^6

Prime Factorization of 21086491

Prime Factorization 21086491

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21086491	Product of the distinct prime numbers

The prime factorization of 21086491 is 21086491. Since it has a total of 1 prime factors.

Most popular turbo-numbers

10, 10, 60, 75, 190, 473, 4104, 5523, 42410, 32497, 773271, 726308, 4571580, 9994869, 54003786, 32537039, 641701681, 900293550, 2832582773, 6693950969

Basic calculations (n = 21086491)

Multiplication

n×y

n×2	42172982
n×3	63259473
n×4	84345964
n×5	105432455

Division

n÷y

n÷2	10543245.5
n÷3	7028830.3333333
n÷3	5271622.75
n÷5	4217298.2

Exponentiation

n^y

n²	444640102693081
n³	9.3758995236767E+21
n⁴	1.9770482092291E+29
n⁵	4.1689009270476E+36

Nth Root

^y√n

²√n	4592.0029398945
³√n	276.27066408353
⁴√n	67.764319076447
⁵√n	29.160895929907

Divisors of 21086491

1, 21086491

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21086492	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10543246	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4592.0030487795	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999051525	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21086491 can be divided by 2 positive divisors. The sum of these divisors (counting 21086491) is 21086492, the average is 10543246.

Base conversion 21086491

Base	System	Value
2	Binary	1010000011100000100011011
3	Ternary	1110200022020011
4	Quaternary	1100130010123
5	Quinary	20344231431
6	Senary	2031542351
8	Octal	120340433
10	Decimal	21086491
12	Duodecimal	708a9b7
16	Hexadecimal	141c11b
20	Vigesimal	6bfg4b
36	Base36	cjyfv

Cryptographic Hash Functions

md5	24ee0b0dfa2d7e2f5f909aa902c0d1dc
sha1	5ced8c8a03cad64081e19b45787baa0f63fd6a36
sha256	206c9c780c5e05aa69f4a38ef70db6b7f5274650e634ff2f577cdaf07c09f248
sha512	6a732d8c23b628e44972643703036fcff7d2bee74a521cfad741ce176b42a6ecf10fbc5f4101a686374b7b1cfec17db6c5473510e74f9dfc1e838f6062be11fa
ripemd-160	3fc23a333efb8bb7f55ed3f27bfe297dc7b76d9b

21086491 as geometric shapes

Circle

Radius = n

Diameter	42172982
Circumference	132490330.43117
Area	1.396878080112E+15

Sphere

Radius = n

Volume	3.9273676085838E+22
Surface area	5.587512320448E+15
Circumference	132490330.43117

Square

Length = n

Perimeter	84345964
Area	444640102693081
Diagonal	29820801.555058

Cube

Length = n

Surface area	2667840616158486
Volume	9.3758995236767E+21
Space diagonal	36522873.765344

Equilateral Triangle

Length = n

Perimeter	63259473
Area	1.9253481223676E+14
Altitude	18261436.882672

Triangular Pyramid

Length = n

Surface area	1.9253481223676E+14
Volume	1.1049603554859E+21
Height	9940267.1850194