20188821 is an odd 8-digits composite number following 20188820
and preceding 20188822 . In scientific notation, it is written as 2.0188821 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 13459212 positive integers (up to 20188821) that are relatively prime to 20188821.
20188821 has 4 divisors, whose sum is 26918432
The reverse of 20188821 is 12888102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred eighty-eight thousand eight hundred twenty-one
Scientific notation
2.0188821 × 10^7
Engineering notation
2.0188821 × 10^6
Prime Factorization
3 × 6729607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20188821
Product of the distinct prime numbers
The prime factorization of 20188821 is 3 × 6729607.
Since it has a total of 2 prime factors.
7 , 7 , 13 , 67 , 313 , 894 , 1434 , 9811 , 31783 , 82892 , 657785 , 56951 , 3719174 , 7361982 , 90245677 , 18408513 , 282419721 , 932028785 , 5563573937 , 1603236805
n×2
40377642
n×3
60566463
n×4
80755284
n×5
100944105
n÷2
10094410.5
n÷3
6729607
n÷3
5047205.25
n÷5
4037764.2
n2
407588493370041
n3
8.2287311343074E+21
n4
1.6612837992766E+29
n5
3.3539361253795E+36
2 √n
4493.1971913104
3 √n
272.29331913789
4 √n
67.031315005081
5 √n
28.908275935318
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
-20188820
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 20188821 can be divided by 4 positive divisors.
The sum of these divisors (counting 20188821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000111010010101
3
Ternary
1101222200212010
4
Quaternary
1031000322111
5
Quinary
20132020241
6
Senary
2000414433
8
Octal
115007225
10
Decimal
20188821
12
Duodecimal
6917419
16
Hexadecimal
1340e95
20
Vigesimal
663c11
36
Base36
c0psl
md5
6b707eafd1f97e8bbe28ad0f5672cfd5
sha1
1b79fe130f8f1dc174d285c950c37114e53221bf
sha256
6f3433aed68cd2fef3346ee584eec57f6ec98b94a3bb57c65878e1acef764119
sha512
e63cd444a7f797ce9086a01af3fba952a6097a2b2985c53c488ee4aecf886ac6aabe908421073c521387468cd56d89d270e56e4ecf8598d7777d8dd0f7639f12
ripemd-160
d15d06273d7b51b8f207320333fb3ff104f1ced7
Diameter
40377642
Circumference
126850103.47648
Area
1.2804770164591E+15
Volume
3.4468428373208E+22
Surface area
5.1219080658362E+15
Circumference
126850103.47648
Perimeter
80755284
Area
407588493370041
Diagonal
28551304.466523
Surface area
2445530960220246
Volume
8.2287311343074E+21
Space diagonal
34968063.716914
Perimeter
60566463
Area
1.7649099477434E+14
Altitude
17484031.858457
Surface area
1.7649099477434E+14
Volume
9.6976526427161E+20
Height
9517101.4888409