20190891 is an odd 8-digits composite number following 20190890
and preceding 20190892 . In scientific notation, it is written as 2.0190891 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 11537568 positive integers (up to 20190891) that are relatively prime to 20190891.
20190891 has 8 divisors, whose sum is 27470800
The reverse of 20190891 is 19809102
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred ninety thousand eight hundred ninety-one
Scientific notation
2.0190891 × 10^7
Engineering notation
2.0190891 × 10^6
Prime Factorization
3 × 49 × 137353
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20190891
Product of the distinct prime numbers
The prime factorization of 20190891 is 3 × 49 × 137353.
Since it has a total of 3 prime factors.
9 , 10 , 43 , 1 , 211 , 857 , 4771 , 2638 , 86779 , 36039 , 854066 , 531061 , 6011640 , 4702500 , 5576913 , 8046157 , 411443187 , 99292472 , 9765980916 , 1530867944
n×2
40381782
n×3
60572673
n×4
80763564
n×5
100954455
n÷2
10095445.5
n÷3
6730297
n÷3
5047722.75
n÷5
4038178.2
n2
407672079373881
n3
8.2312625183814E+21
n4
1.6619652430102E+29
n5
3.3556559067408E+36
2 √n
4493.4275336318
3 √n
272.3026250785
4 √n
67.033033152557
5 √n
28.908868715621
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
-20190890
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 20190891 can be divided by 8 positive divisors.
The sum of these divisors (counting 20190891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001011010101011
3
Ternary
1101222210200210
4
Quaternary
1031001122223
5
Quinary
20132102031
6
Senary
2000432203
8
Octal
115013253
10
Decimal
20190891
12
Duodecimal
6918663
16
Hexadecimal
13416ab
20
Vigesimal
663h4b
36
Base36
c0re3
md5
41315ef8458258a7faa94fd69c433559
sha1
13a5a343f98c2118f9d4d03bac4dca1991159db4
sha256
42844bcf3e5c1411341ce85ba6d26678fd838354c3820e602c68749341461bbd
sha512
c5b0770e0c00b347fbb2d319ac4881e8686d80cd3d54775ab2d2d657d0dcbd21ac1167927ebf19c4761c934243e54044cee079f31429662daed57316dab8a923
ripemd-160
4703f38a6c4d9819e91c3e17a6edd2b6349e28ce
Diameter
40381782
Circumference
126863109.67006
Area
1.2807396096347E+15
Volume
3.4479031810021E+22
Surface area
5.1229584385386E+15
Circumference
126863109.67006
Perimeter
80763564
Area
407672079373881
Diagonal
28554231.888597
Surface area
2446032476243286
Volume
8.2312625183814E+21
Space diagonal
34971649.062085
Perimeter
60572673
Area
1.765271885757E+14
Altitude
17485824.531043
Surface area
1.765271885757E+14
Volume
9.7006359074569E+20
Height
9518077.296199