21868081 is an odd 8-digits prime number following 21868080
and preceding 21868082 . In scientific notation, it is written as 2.1868081 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 21868080 positive integers (up to 21868081) that are relatively prime to 21868081.
21868081 has 2 divisors, whose sum is 21868082
The reverse of 21868081 is 18086812
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million eight hundred sixty-eight thousand eighty-one
Scientific notation
2.1868081 × 10^7
Engineering notation
2.1868081 × 10^6
Prime Factorization
21868081
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21868081
Product of the distinct prime numbers
The prime factorization of 21868081 is 21868081.
Since it has a total of 1 prime factors.
9 , 6 , 91 , 20 , 244 , 86 , 7294 , 4684 , 34680 , 31722 , 804308 , 327241 , 7315214 , 8694528 , 69561135 , 52614413 , 573940306 , 521428168 , 3675674657 , 2703087593
n×2
43736162
n×3
65604243
n×4
87472324
n×5
109340405
n÷2
10934040.5
n÷3
7289360.3333333
n÷3
5467020.25
n÷5
4373616.2
n2
478212966622561
n3
1.0457599889352E+22
n4
2.2868764144595E+29
n5
5.000959866839E+36
2 √n
4676.332002756
3 √n
279.64274590129
4 √n
68.383711531007
5 √n
29.373935355971
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21868082
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10934041
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4676.3321096774
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999085425
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21868081 can be divided by 2 positive divisors.
The sum of these divisors (counting 21868081) is 21868082, the average is 10934041.
Base
System
Value
2
Binary
1010011011010111000110001
3
Ternary
1112011000100221
4
Quaternary
1103122320301
5
Quinary
21044234311
6
Senary
2100413041
8
Octal
123327061
10
Decimal
21868081
12
Duodecimal
73a7181
16
Hexadecimal
14dae31
20
Vigesimal
6gda41
36
Base36
d0pip
md5
a0566b08bc4faca93dd73ff9c05ec1e3
sha1
77f872f6374c9bf9408a45166d421ac9697b7d64
sha256
171108c4d8e614b91f5181b56fa3fe25b624dde8e8b6495869ea78f3fdc203e9
sha512
db3764f17cb5b1a671506459c512ca9863e860f65975049f335d1878f896375ba9ee79568a3bd9ae201a98129d25f8e7470fef4e0286c30156b40b47e0147cb3
ripemd-160
0a62a6d33e7faf497046d792c14a8f15a2e26b15
Diameter
43736162
Circumference
137401205.23541
Area
1.5023503427928E+15
Volume
4.3804691982095E+22
Surface area
6.0094013711713E+15
Circumference
137401205.23541
Perimeter
87472324
Area
478212966622561
Diagonal
30926136.733273
Surface area
2869277799735366
Volume
1.0457599889352E+22
Space diagonal
37876627.356032
Perimeter
65604243
Area
2.0707228875713E+14
Altitude
18938313.678016
Surface area
2.0707228875713E+14
Volume
1.2324399661161E+21
Height
10308712.244424