20921189 is an odd 8-digits composite number following 20921188
and preceding 20921190 . In scientific notation, it is written as 2.0921189 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20898924 positive integers (up to 20921189) that are relatively prime to 20921189.
20921189 has 4 divisors, whose sum is 20943456
The reverse of 20921189 is 98112902
Previous prime number is 983
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred twenty-one thousand one hundred eighty-nine
Scientific notation
2.0921189 × 10^7
Engineering notation
2.0921189 × 10^6
Prime Factorization
983 × 21283
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921189
Product of the distinct prime numbers
The prime factorization of 20921189 is 983 × 21283.
Since it has a total of 2 prime factors.
3 , 5 , 63 , 35 , 941 , 968 , 7480 , 6418 , 61353 , 48047 , 687105 , 563749 , 9493678 , 2498698 , 21512916 , 94563638 , 819328815 , 415863909 , 6822125887 , 954948802
n×2
41842378
n×3
62763567
n×4
83684756
n×5
104605945
n÷2
10460594.5
n÷3
6973729.6666667
n÷3
5230297.25
n÷5
4184237.8
n2
437696149173721
n3
9.1571238614356E+21
n4
1.915779190015E+29
n5
4.0080378516572E+36
2 √n
4573.9686269147
3 √n
275.54685232971
4 √n
67.631121733376
5 √n
29.115032053679
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
-20921188
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 20921189 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921189) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011101101100101
3
Ternary
1110100220110212
4
Quaternary
1033303231211
5
Quinary
20323434224
6
Senary
2024225205
8
Octal
117635545
10
Decimal
20921189
12
Duodecimal
700b205
16
Hexadecimal
13f3b65
20
Vigesimal
6af2j9
36
Base36
cgew5
md5
a9cce669a128aa4bc3a1f7467a9681a6
sha1
3fd603e510c5563656a3bf10f8e9764494f92d8f
sha256
6d07270149247d7d143743e151aa968e8a96522a99b15294b47258a05c1d38d1
sha512
aee7f79c5ced1f549a388485b54420da7b0625059eaf598669325d713c61129f929d0e77d372e469536eaf6d18b12f422db49f4fe545b2c4bc5d0b6ea905dff2
ripemd-160
8a734c36cdb656a4d7abd60e8c8085aa502ecc30
Diameter
41842378
Circumference
131451707.33353
Area
1.3750630067487E+15
Volume
3.8357270734797E+22
Surface area
5.5002520269948E+15
Circumference
131451707.33353
Perimeter
83684756
Area
437696149173721
Diagonal
29587029.224771
Surface area
2626176895042326
Volume
9.1571238614356E+21
Space diagonal
36236562.302751
Perimeter
62763567
Area
1.8952799216153E+14
Altitude
18118281.151376
Surface area
1.8952799216153E+14
Volume
1.079177396431E+21
Height
9862343.0749236