20087945 is an odd 8-digits composite number following 20087944
and preceding 20087946 . In scientific notation, it is written as 2.0087945 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 16070352 positive integers (up to 20087945) that are relatively prime to 20087945.
20087945 has 4 divisors, whose sum is 24105540
The reverse of 20087945 is 54978002
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million eighty-seven thousand nine hundred forty-five
Scientific notation
2.0087945 × 10^7
Engineering notation
2.0087945 × 10^6
Prime Factorization
5 × 4017589
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20087945
Product of the distinct prime numbers
The prime factorization of 20087945 is 5 × 4017589.
Since it has a total of 2 prime factors.
1 , 3 , 15 , 67 , 937 , 289 , 2870 , 3041 , 97162 , 75014 , 860221 , 614524 , 3147116 , 8212533 , 99047408 , 84347476 , 467183888 , 482587064 , 1558445642 , 159724598
n×2
40175890
n×3
60263835
n×4
80351780
n×5
100439725
n÷2
10043972.5
n÷3
6695981.6666667
n÷3
5021986.25
n÷5
4017589
n2
403525534323025
n3
8.1059987395765E+21
n4
1.6283285685068E+29
n5
3.2709774726094E+36
2 √n
4481.9577195685
3 √n
271.83904567038
4 √n
66.947425040613
5 √n
28.879329250958
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
-20087944
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 20087945 can be divided by 4 positive divisors.
The sum of these divisors (counting 20087945) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101000010010001001
3
Ternary
1101210120110222
4
Quaternary
1030220102021
5
Quinary
20120303240
6
Senary
1554315425
8
Octal
114502211
10
Decimal
20087945
12
Duodecimal
6888b75
16
Hexadecimal
1328489
20
Vigesimal
65ajh5
36
Base36
byjyh
md5
b9fd5280ee465f05000883c7a59d74dc
sha1
1e302ab8a1507d73f4a11dd1958891bcd5345fcd
sha256
43a70e34aad65ce852c76d94cf7048604da9791155a93a384dadb2cfa7c9ae12
sha512
38ce68e91d6773c3186a25491711191b29fb1e3c98946a5990dbc642aaea15e592ebd0c4f676e62c8c9e092217a35d958fe797c7d4b9cafcc94e94da6918ba33
ripemd-160
06424bc831dda3d2ca16dd4b78f87be7c56b352a
Diameter
40175890
Circumference
126216280.87543
Area
1.2677128541651E+15
Volume
3.3954328120349E+22
Surface area
5.0708514166604E+15
Circumference
126216280.87543
Perimeter
80351780
Area
403525534323025
Diagonal
28408644.259205
Surface area
2421153205938150
Volume
8.1059987395765E+21
Space diagonal
34793341.359649
Perimeter
60263835
Area
1.7473168189971E+14
Altitude
17396670.679825
Surface area
1.7473168189971E+14
Volume
9.553011128407E+20
Height
9469548.0864016