21568189 is an odd 8-digits composite number following 21568188
and preceding 21568190 . In scientific notation, it is written as 2.1568189 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 20167680 positive integers (up to 21568189) that are relatively prime to 21568189.
21568189 has 8 divisors, whose sum is 22985208
The reverse of 21568189 is 98186512
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million five hundred sixty-eight thousand one hundred eighty-nine
Scientific notation
2.1568189 × 10^7
Engineering notation
2.1568189 × 10^6
Prime Factorization
17 × 157 × 8081
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21568189
Product of the distinct prime numbers
The prime factorization of 21568189 is 17 × 157 × 8081.
Since it has a total of 3 prime factors.
9 , 5 , 58 , 13 , 417 , 404 , 6931 , 8938 , 75756 , 60970 , 933576 , 648158 , 7978632 , 5554387 , 11502142 , 36613029 , 176473570 , 77326034 , 1517414593 , 3082838979
n×2
43136378
n×3
64704567
n×4
86272756
n×5
107840945
n÷2
10784094.5
n÷3
7189396.3333333
n÷3
5392047.25
n÷5
4313637.8
n2
465186776739721
n3
1.0033236321023E+22
n4
2.1639873725349E+29
n5
4.6673288644446E+36
2 √n
4644.1564357803
3 √n
278.35854656636
4 √n
68.148047923476
5 √n
29.292924760951
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
-21568188
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 21568189 can be divided by 8 positive divisors.
The sum of these divisors (counting 21568189) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010010001101010111101
3
Ternary
1111120202222211
4
Quaternary
1102101222331
5
Quinary
21010140224
6
Senary
2050140421
8
Octal
122215275
10
Decimal
21568189
12
Duodecimal
7281711
16
Hexadecimal
1491abd
20
Vigesimal
6eg099
36
Base36
cua4d
md5
8d222f57a5a7db7c0a4d711713d9289d
sha1
e2f8344d60d304c40a5816c707dbfd108be0a254
sha256
9421bcb63ec6d6446f0a4447efa0a6b7f41f6330914f5189d4b55aae00ec915e
sha512
f515809f4170b3c6f5dc853a1884a1ad192cfb2543591888eaae6820b1564dee81393034d3dfc4bf435c4bd129e755f43b3e1b6c37998e974af08db94abd13b6
ripemd-160
0614e9600092cb4e9a9678d6341a795fc1ecad2c
Diameter
43136378
Circumference
135516928.22727
Area
1.4614273603526E+15
Volume
4.2027122023809E+22
Surface area
5.8457094414105E+15
Circumference
135516928.22727
Perimeter
86272756
Area
465186776739721
Diagonal
30502025.399626
Surface area
2791120660438326
Volume
1.0033236321023E+22
Space diagonal
37357199.175248
Perimeter
64704567
Area
2.014317830806E+14
Altitude
18678599.587624
Surface area
2.014317830806E+14
Volume
1.1824282399738E+21
Height
10167341.799875