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

21086979 (number)

21086979 is an odd 8-digits composite number following 21086978 and preceding 21086980. In scientific notation, it is written as 2.1086979 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 13318056 positive integers (up to 21086979) that are relatively prime to 21086979.

Interesting facts

21086979 has 4 divisors, whose sum is 21456984
The reverse of 21086979 is 97968012
Previous prime number is 57

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

Name	twenty-one million eighty-six thousand nine hundred seventy-nine

Notation

Scientific notation	2.1086979 × 10^7
Engineering notation	2.1086979 × 10^6

Prime Factorization of 21086979

Prime Factorization 57 × 369947

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21086979	Product of the distinct prime numbers

The prime factorization of 21086979 is 57 × 369947. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 3, 68, 43, 407, 740, 6257, 7259, 43227, 99494, 987237, 852408, 2512798, 9407670, 32533536, 68537884, 379303151, 384615835, 4253861376, 1278817042

Basic calculations (n = 21086979)

Multiplication

n×y

n×2	42173958
n×3	63260937
n×4	84347916
n×5	105434895

Division

n÷y

n÷2	10543489.5
n÷3	7028993
n÷3	5271744.75
n÷5	4217395.8

Exponentiation

n^y

n²	444660683346441
n³	9.3765504918521E+21
n⁴	1.9772312331412E+29
n⁵	4.1693833491393E+36

Nth Root

^y√n

²√n	4592.0560754416
³√n	276.27279529073
⁴√n	67.764711136709
⁵√n	29.161030901491

Divisors of 21086979

1, 57, 369947, 21086979

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	-21086978	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 21086979 can be divided by 4 positive divisors. The sum of these divisors (counting 21086979) is 1, the average is 0.25.

Base conversion 21086979

Base	System	Value
2	Binary	1010000011100001100000011
3	Ternary	1110200022220020
4	Quaternary	1100130030003
5	Quinary	20344240404
6	Senary	2031544523
8	Octal	120341403
10	Decimal	21086979
12	Duodecimal	708b143
16	Hexadecimal	141c303
20	Vigesimal	6bfh8j
36	Base36	cjytf

Cryptographic Hash Functions

md5	1f0f74dd91ee1bceb4d5a91356cd43a2
sha1	c896b37b1b28cee439a16e9da43076409d7ac6ef
sha256	f2a85136cc8614c287e9a524e1567e61d66a7156d5ae31b6ae5d9912dad95c5b
sha512	180fd6a44e1c6e7ede3d42ebf956652bdfc5895b1b4a72f3aeefd7968c2aacb5669523af11faa4f6e72def3fc833b512be44eda06e025d891618e68db1db6ae6
ripemd-160	cac7fa0509982e7cdc6eb4beb111f77ff7bdfa0c

21086979 as geometric shapes

Circle

Radius = n

Diameter	42173958
Circumference	132493396.6256
Area	1.3969427361414E+15

Sphere

Radius = n

Volume	3.9276402854955E+22
Surface area	5.5877709445656E+15
Circumference	132493396.6256

Square

Length = n

Perimeter	84347916
Area	444660683346441
Diagonal	29821491.691277

Cube

Length = n

Surface area	2667964100078646
Volume	9.3765504918521E+21
Space diagonal	36523719.006138

Equilateral Triangle

Length = n

Perimeter	63260937
Area	1.9254372392108E+14
Altitude	18261859.503069

Triangular Pyramid

Length = n

Surface area	1.9254372392108E+14
Volume	1.1050370728211E+21
Height	9940497.2304255