20442945 is an odd 8-digits composite number following 20442944
and preceding 20442946 . In scientific notation, it is written as 2.0442945 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 10902896 positive integers (up to 20442945) that are relatively prime to 20442945.
20442945 has 4 divisors, whose sum is 21805824
The reverse of 20442945 is 54924402
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million four hundred forty-two thousand nine hundred forty-five
Scientific notation
2.0442945 × 10^7
Engineering notation
2.0442945 × 10^6
Prime Factorization
15 × 1362863
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20442945
Product of the distinct prime numbers
The prime factorization of 20442945 is 15 × 1362863.
Since it has a total of 2 prime factors.
2 , 4 , 34 , 5 , 406 , 784 , 9030 , 7245 , 86228 , 90304 , 707317 , 290160 , 3873804 , 5700585 , 77421336 , 9672181 , 899938400 , 199745563 , 6648639227 , 8377744805
n×2
40885890
n×3
61328835
n×4
81771780
n×5
102214725
n÷2
10221472.5
n÷3
6814315
n÷3
5110736.25
n÷5
4088589
n2
417914000273025
n3
8.5433929223114E+21
n4
1.746521116242E+29
n5
3.5704035120674E+36
2 √n
4521.3875082766
3 √n
273.43104362442
4 √n
67.241263434565
5 √n
28.980688043754
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
-20442944
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 20442945 can be divided by 4 positive divisors.
The sum of these divisors (counting 20442945) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101111110111101000001
3
Ternary
1102110121110010
4
Quaternary
1031332331001
5
Quinary
20213133240
6
Senary
2010055133
8
Octal
115767501
10
Decimal
20442945
12
Duodecimal
6a1a4a9
16
Hexadecimal
137ef41
20
Vigesimal
67f775
36
Base36
c65vl
md5
724e3822d41560a102a612777dbcf72c
sha1
3698c38ed7daa531f81d56633ea0e214dddd3475
sha256
359f2d90d8a9d99839bc2cdb54392d0cec0bc5834db1ddc0be3aba9e5e8b5299
sha512
8b4a0085afe1a04c24360f939bf48dd87a7f1c973d004b0b283b09680488ec8ef951020d7b83148ad1e0d3a08646b373797e024c43731e5dc5aed41dba4ea962
ripemd-160
c6592853a2422be5f9376b31141fea97d091d35c
Diameter
40885890
Circumference
128446811.65948
Area
1.3129155530901E+15
Volume
3.578648058862E+22
Surface area
5.2516622123602E+15
Circumference
128446811.65948
Perimeter
81771780
Area
417914000273025
Diagonal
28910690.073847
Surface area
2507484001638150
Volume
8.5433929223114E+21
Space diagonal
35408219.396336
Perimeter
61328835
Area
1.8096207041681E+14
Altitude
17704109.698168
Surface area
1.8096207041681E+14
Volume
1.0068485116179E+21
Height
9636896.6912824