20190145 is an odd 8-digits composite number following 20190144
and preceding 20190146 . In scientific notation, it is written as 2.0190145 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 15630960 positive integers (up to 20190145) that are relatively prime to 20190145.
20190145 has 4 divisors, whose sum is 20320560
The reverse of 20190145 is 54109102
Previous prime number is 155
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred ninety thousand one hundred forty-five
Scientific notation
2.0190145 × 10^7
Engineering notation
2.0190145 × 10^6
Prime Factorization
155 × 130259
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20190145
Product of the distinct prime numbers
The prime factorization of 20190145 is 155 × 130259.
Since it has a total of 2 prime factors.
9 , 8 , 92 , 81 , 958 , 195 , 6370 , 3933 , 41271 , 42487 , 529749 , 562210 , 682386 , 1722660 , 77487661 , 97225754 , 219032949 , 114497105 , 289891217 , 6906911389
n×2
40380290
n×3
60570435
n×4
80760580
n×5
100950725
n÷2
10095072.5
n÷3
6730048.3333333
n÷3
5047536.25
n÷5
4038029
n2
407641955121025
n3
8.230350181977E+21
n4
1.6617196357489E+29
n5
3.3550360395118E+36
2 √n
4493.3445227358
3 √n
272.29927141669
4 √n
67.032413970674
5 √n
28.908655091221
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
-20190144
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 20190145 can be divided by 4 positive divisors.
The sum of these divisors (counting 20190145) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000001001111000001
3
Ternary
1101222202200011
4
Quaternary
1031001033001
5
Quinary
20132041040
6
Senary
2000424521
8
Octal
115011701
10
Decimal
20190145
12
Duodecimal
6918141
16
Hexadecimal
13413c1
20
Vigesimal
663f75
36
Base36
c0qtd
md5
233c07d836efe0c1aa676a72abf4fbd0
sha1
e0ce9f2dc31b16a0ace5184898fe0941cc7c9ff2
sha256
4a1256ff602fc5d387bdb3c126c3ec3fd55ac92db8e8311c7cba18844a04f645
sha512
56b02aef9184b1d5d267bb64bf2725d4f8f003ad2fb17a4f65214624b3d9ebc2f9ca45e867defd2892adfc6bc2111287a9e258f062909665b50d9599ca5ca191
ripemd-160
4ff2013cac4018b9b3f863022bcc42a52f386390
Diameter
40380290
Circumference
126858422.41383
Area
1.2806449715032E+15
Volume
3.4475210224227E+22
Surface area
5.1225798860128E+15
Circumference
126858422.41383
Perimeter
80760580
Area
407641955121025
Diagonal
28553176.885279
Surface area
2445851730726150
Volume
8.230350181977E+21
Space diagonal
34970356.952183
Perimeter
60570435
Area
1.7651414439158E+14
Altitude
17485178.476091
Surface area
1.7651414439158E+14
Volume
9.6995607086931E+20
Height
9517725.6284264