21568649 is an odd 8-digits composite number following 21568648
and preceding 21568650 . In scientific notation, it is written as 2.1568649 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 21228480 positive integers (up to 21568649) that are relatively prime to 21568649.
21568649 has 8 divisors, whose sum is 21911712
The reverse of 21568649 is 94686512
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million five hundred sixty-eight thousand six hundred forty-nine
Scientific notation
2.1568649 × 10^7
Engineering notation
2.1568649 × 10^6
Prime Factorization
163 × 113 × 1171
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21568649
Product of the distinct prime numbers
The prime factorization of 21568649 is 163 × 113 × 1171.
Since it has a total of 3 prime factors.
2 , 6 , 49 , 66 , 756 , 414 , 4945 , 9564 , 73685 , 40570 , 812440 , 681919 , 7669177 , 5271890 , 36467528 , 6924754 , 216007222 , 796645638 , 811591427 , 8091965563
n×2
43137298
n×3
64705947
n×4
86274596
n×5
107843245
n÷2
10784324.5
n÷3
7189549.6666667
n÷3
5392162.25
n÷5
4313729.8
n2
465206619685201
n3
1.0033878292467E+22
n4
2.1641719899893E+29
n5
4.6678266027711E+36
2 √n
4644.2059601185
3 √n
278.36052546873
4 √n
68.148411280957
5 √n
29.293049710064
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
-21568648
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 21568649 can be divided by 8 positive divisors.
The sum of these divisors (counting 21568649) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010010001110010001001
3
Ternary
1111120210121212
4
Quaternary
1102101302021
5
Quinary
21010144044
6
Senary
2050142505
8
Octal
122216211
10
Decimal
21568649
12
Duodecimal
7281a35
16
Hexadecimal
1491c89
20
Vigesimal
6eg1c9
36
Base36
cuah5
md5
b668110c4e1828151b7237f62b0191e2
sha1
c18152509cd91bbda506c3d1b0630b110bde8f7e
sha256
0edf447b20b3b80062fea863e79a573e82863108891497ca71621cf7020f15c4
sha512
2c1c3afbaf9830ab37a39a2a072f3d666a5a4e78e0c326e288bdbaf92cac067ddbd9c5818f68399df453da3e8502404ca71221520a7b0270409f314a633d3f8c
ripemd-160
dac1b034ad78162f28df55e79d4fe7afb122a732
Diameter
43137298
Circumference
135519818.49251
Area
1.4614896988044E+15
Volume
4.2029811107503E+22
Surface area
5.8459587952175E+15
Circumference
135519818.49251
Perimeter
86274596
Area
465206619685201
Diagonal
30502675.937865
Surface area
2791239718111206
Volume
1.0033878292467E+22
Space diagonal
37357995.91862
Perimeter
64705947
Area
2.0144037532803E+14
Altitude
18678997.95931
Surface area
2.0144037532803E+14
Volume
1.1825038970339E+21
Height
10167558.645955