21578082 is an even 8-digits composite number following 21578081
and preceding 21578083 . In scientific notation, it is written as 2.1578082 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 7140672 positive integers (up to 21578082) that are relatively prime to 21578082.
21578082 has 16 divisors, whose sum is 43468320
The reverse of 21578082 is 28087512
Previous prime number is 139
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million five hundred seventy-eight thousand eighty-two
Scientific notation
2.1578082 × 10^7
Engineering notation
2.1578082 × 10^6
Prime Factorization
2 × 3 × 139 × 25873
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21578082
Product of the distinct prime numbers
The prime factorization of 21578082 is 2 × 3 × 139 × 25873.
Since it has a total of 4 prime factors.
7 , 4 , 38 , 56 , 109 , 707 , 7686 , 6030 , 2695 , 80862 , 289258 , 14431 , 1804115 , 3393111 , 83247011 , 20070892 , 689365865 , 641005780 , 5626265842 , 1185493391
n×2
43156164
n×3
64734246
n×4
86312328
n×5
107890410
n÷2
10789041
n÷3
7192694
n÷3
5394520.5
n÷5
4315616.4
n2
465613622798724
n3
1.0047048933068E+22
n4
2.1679604573575E+29
n5
4.6780428521618E+36
2 √n
4645.2214156055
3 √n
278.40109967032
4 √n
68.155861197739
5 √n
29.29561151179
1 , 2 , 3 , 6 , 139 , 278 , 417 , 834 , 25873 , 51746 , 77619 , 155238 , 3596347 , 7192694 , 10789041 , 21578082
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21578081
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21578082 can be divided by 16 positive divisors.
The sum of these divisors (counting 21578082) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010010100000101100010
3
Ternary
1111121021120020
4
Quaternary
1102110011202
5
Quinary
21010444312
6
Senary
2050254310
8
Octal
122240542
10
Decimal
21578082
12
Duodecimal
7287396
16
Hexadecimal
1494162
20
Vigesimal
6eh542
36
Base36
cuhr6
md5
2e0172be0f5c1d124ee4c5ff4bf19f69
sha1
336176dc142e3fda99b54a72488fefcb87e1531a
sha256
c9bed5cb5adf4dbd20cab7ee117ddb53fc666e041b901d7ba98b6f0ebf875818
sha512
2761611e19bd696a43f9823244752010348303bde5f89c0ca6cd2f77380eb52f36b18002c60638a2eebf25776fbc6b32d463cd979b65bf1f4fb478538f551c84
ripemd-160
c6355d386b8a180d11eabf5f32209355fbda58af
Diameter
43156164
Circumference
135579087.77952
Area
1.4627683367958E+15
Volume
4.2084980157845E+22
Surface area
5.8510733471832E+15
Circumference
135579087.77952
Perimeter
86312328
Area
465613622798724
Diagonal
30516016.214399
Surface area
2793681736792344
Volume
1.0047048933068E+22
Space diagonal
37374334.353887
Perimeter
64734246
Area
2.016166128459E+14
Altitude
18687167.176944
Surface area
2.016166128459E+14
Volume
1.1840560719142E+21
Height
10172005.4048