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

20181081 (number)

20181081 is an odd 8-digits composite number following 20181080 and preceding 20181082. In scientific notation, it is written as 2.0181081 × 10^7. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 13454052 positive integers (up to 20181081) that are relatively prime to 20181081.

Interesting facts

20181081 has 4 divisors, whose sum is 26908112
The reverse of 20181081 is 18018102
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	twenty million one hundred eighty-one thousand eighty-one

Notation

Scientific notation	2.0181081 × 10^7
Engineering notation	2.0181081 × 10^6

Prime Factorization of 20181081

Prime Factorization 3 × 6727027

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20181081	Product of the distinct prime numbers

The prime factorization of 20181081 is 3 × 6727027. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 5, 78, 77, 507, 959, 5795, 6273, 26599, 27158, 555702, 42508, 1779141, 605362, 6269241, 62977095, 556903298, 727983429, 8957158847, 623382024

Basic calculations (n = 20181081)

Multiplication

n×y

n×2	40362162
n×3	60543243
n×4	80724324
n×5	100905405

Division

n÷y

n÷2	10090540.5
n÷3	6727027
n÷3	5045270.25
n÷5	4036216.2

Exponentiation

n^y

n²	407276030328561
n³	8.2192705574191E+21
n⁴	1.6587376488019E+29
n⁵	3.3475118848221E+36

Nth Root

^y√n

²√n	4492.3358066823
³√n	272.25851737509
⁴√n	67.024889456696
⁵√n	28.90605902155

Divisors of 20181081

1, 3, 6727027, 20181081

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	-20181080	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 20181081 can be divided by 4 positive divisors. The sum of these divisors (counting 20181081) is 1, the average is 0.25.

Base conversion 20181081

Base	System	Value
2	Binary	1001100111111000001011001
3	Ternary	1101222022020110
4	Quaternary	1030333001121
5	Quinary	20131243311
6	Senary	2000314533
8	Octal	114770131
10	Decimal	20181081
12	Duodecimal	6912a49
16	Hexadecimal	133f059
20	Vigesimal	662ce1
36	Base36	c0jtl

Cryptographic Hash Functions

md5	c2fa3f89126d7c464ba1c2e7d26c8715
sha1	0994ad76ce034ddc24327bcf42e966f03b3f763a
sha256	675b5eaef0f58a5874084597470ec5f1b45dfb96ef26bc25979d1a74707dabc6
sha512	20626569a96a80f055aa4749e594c11d2669ec352473c196589dd0223ea11397fc3f086caccd91d1d5c5128d2b5f69547872be0640ba7afd804539c15e7c7a65
ripemd-160	f708a7bc4e9a1c614e91d2276b4083824f72e317

20181081 as geometric shapes

Circle

Radius = n

Diameter	40362162
Circumference	126801471.6222
Area	1.2794953848634E+15

Sphere

Radius = n

Volume	3.4428800001406E+22
Surface area	5.1179815394537E+15
Circumference	126801471.6222

Square

Length = n

Perimeter	80724324
Area	407276030328561
Diagonal	28540358.45355

Cube

Length = n

Surface area	2443656181971366
Volume	8.2192705574191E+21
Space diagonal	34954657.643663

Equilateral Triangle

Length = n

Perimeter	60543243
Area	1.7635569430851E+14
Altitude	17477328.821831

Triangular Pyramid

Length = n

Surface area	1.7635569430851E+14
Volume	9.68650324593E+20
Height	9513452.81785