20215745 is an odd 8-digits composite number following 20215744
and preceding 20215746 . In scientific notation, it is written as 2.0215745 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 14702320 positive integers (up to 20215745) that are relatively prime to 20215745.
20215745 has 4 divisors, whose sum is 20583360
The reverse of 20215745 is 54751202
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million two hundred fifteen thousand seven hundred forty-five
Scientific notation
2.0215745 × 10^7
Engineering notation
2.0215745 × 10^6
Prime Factorization
55 × 367559
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20215745
Product of the distinct prime numbers
The prime factorization of 20215745 is 55 × 367559.
Since it has a total of 2 prime factors.
9 , 2 , 99 , 88 , 602 , 873 , 7760 , 1226 , 48687 , 98061 , 621115 , 289257 , 3459028 , 8754642 , 44010180 , 45235852 , 793501604 , 577973643 , 2787619122 , 7581303410
n×2
40431490
n×3
60647235
n×4
80862980
n×5
101078725
n÷2
10107872.5
n÷3
6738581.6666667
n÷3
5053936.25
n÷5
4043149
n2
408676345905025
n3
8.2616967963478E+21
n4
1.6701635570228E+29
n5
3.3763600577067E+36
2 √n
4496.1922779169
3 √n
272.41430967254
4 √n
67.053652233991
5 √n
28.915982294791
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
-20215744
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 20215745 can be divided by 4 positive divisors.
The sum of these divisors (counting 20215745) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000111011111000001
3
Ternary
1102001001210022
4
Quaternary
1031013133001
5
Quinary
20133400440
6
Senary
2001143225
8
Octal
115073701
10
Decimal
20215745
12
Duodecimal
692ab15
16
Hexadecimal
13477c1
20
Vigesimal
666j75
36
Base36
c1akh
md5
08a15e75e62f210f6621f9698c3b8d65
sha1
3bc71665098df1d559a24f7a272c62aa1bde8840
sha256
858d28ab73391e91b55d9aa9c9dc04eaff7a1a57da1206aeb1d0609f57bda8ff
sha512
314cc5ea2802c5efed08ea533f161676268769b11f80cb413486233da9aa6fcd810cedb2f5793c0bd83d4ed2f270744e5a9ad0a190e91f75823f7457d4002153
ripemd-160
dbd53aecd118f26d240b5383a41fbb92b319b647
Diameter
40431490
Circumference
127019271.95769
Area
1.2838946059911E+15
Volume
3.4606514615457E+22
Surface area
5.1355784239646E+15
Circumference
127019271.95769
Perimeter
80862980
Area
408676345905025
Diagonal
28589380.752476
Surface area
2452058075430150
Volume
8.2616967963478E+21
Space diagonal
35014697.452856
Perimeter
60647235
Area
1.7696204873977E+14
Altitude
17507348.726428
Surface area
1.7696204873977E+14
Volume
9.7365030480078E+20
Height
9529793.5841587