20970145 is an odd 8-digits composite number following 20970144
and preceding 20970146 . In scientific notation, it is written as 2.0970145 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 14379504 positive integers (up to 20970145) that are relatively prime to 20970145.
20970145 has 4 divisors, whose sum is 21569328
The reverse of 20970145 is 54107902
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million nine hundred seventy thousand one hundred forty-five
Scientific notation
2.0970145 × 10^7
Engineering notation
2.0970145 × 10^6
Prime Factorization
35 × 599147
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20970145
Product of the distinct prime numbers
The prime factorization of 20970145 is 35 × 599147.
Since it has a total of 2 prime factors.
9 , 6 , 31 , 27 , 960 , 35 , 43 , 437 , 78051 , 61411 , 782765 , 174717 , 5743592 , 8619320 , 24982623 , 83583181 , 485992115 , 68331263 , 4836412910 , 2019575570
n×2
41940290
n×3
62910435
n×4
83880580
n×5
104850725
n÷2
10485072.5
n÷3
6990048.3333333
n÷3
5242536.25
n÷5
4194029
n2
439746981321025
n3
9.2215579616142E+21
n4
1.9337740758095E+29
n5
4.0551522766967E+36
2 √n
4579.3170888245
3 √n
275.76161328054
4 √n
67.670651606324
5 √n
29.128645268829
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
-20970144
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 20970145 can be divided by 4 positive divisors.
The sum of these divisors (counting 20970145) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111111101010100001
3
Ternary
1110110101122001
4
Quaternary
1033333222201
5
Quinary
20332021040
6
Senary
2025244001
8
Octal
117775241
10
Decimal
20970145
12
Duodecimal
7033601
16
Hexadecimal
13ffaa1
20
Vigesimal
6b1575
36
Base36
chgo1
md5
6551c9ee12f03c51a02d37785cc9fc2c
sha1
2d9550121ff7157f6d65bd9691e649af8c3d60cf
sha256
b908fb86241b7db1f2021db2eda7c61f9a556624e814eb6cd67946a61dc33962
sha512
4ddc1087785bb9957560c99569cddef3f3f17b5ee78c3426951416ec633eaf735899062164c7946684933ca07f0781d615506e6f814dfe6e557769489aa2ab5c
ripemd-160
f1401caff71ac62541253b4ae5fd1db5bc036636
Diameter
41940290
Circumference
131759306.95343
Area
1.3815058859564E+15
Volume
3.8627171662479E+22
Surface area
5.5260235438257E+15
Circumference
131759306.95343
Perimeter
83880580
Area
439746981321025
Diagonal
29656263.46393
Surface area
2638481887926150
Volume
9.2215579616142E+21
Space diagonal
36321356.582086
Perimeter
62910435
Area
1.9041602853076E+14
Altitude
18160678.291043
Surface area
1.9041602853076E+14
Volume
1.0867710279604E+21
Height
9885421.1546434