20397790 is an even 8-digits composite number following 20397789
and preceding 20397791 . In scientific notation, it is written as 2.0397790 × 10^7.
The sum of its digits is 37. It has a total of 5 prime factors and 32 positive divisors.
There are 6451200 positive integers (up to 20397790) that are relatively prime to 20397790.
20397790 has 32 divisors, whose sum is 36086976
The reverse of 20397790 is 09779302
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million three hundred ninety-seven thousand seven hundred ninety
Scientific notation
2.0397790 × 10^7
Engineering notation
2.0397790 × 10^6
Prime Factorization
2 × 7 × 85 × 61 × 281
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20397790
Product of the distinct prime numbers
The prime factorization of 20397790 is 2 × 7 × 85 × 61 × 281.
Since it has a total of 5 prime factors.
3 , 4 , 85 , 49 , 301 , 477 , 2506 , 1201 , 69316 , 49790 , 718901 , 883988 , 6370360 , 3751535 , 13536412 , 49960512 , 322957947 , 888590181 , 3391314200 , 8064181193
n×2
40795580
n×3
61193370
n×4
81591160
n×5
101988950
n÷2
10198895
n÷3
6799263.3333333
n÷3
5099447.5
n÷5
4079558
n2
416069836884100
n3
8.4869051580961E+21
n4
1.7311410916476E+29
n5
3.5311452447799E+36
2 √n
4516.391258516
3 √n
273.22957427328
4 √n
67.204101500697
5 √n
28.967874031744
1 , 2 , 7 , 14 , 61 , 85 , 122 , 170 , 281 , 427 , 562 , 595 , 854 , 1190 , 1967 , 3934 , 5185 , 10370 , 17141 , 23885 , 34282 , 36295 , 47770 , 72590 , 119987 , 167195 , 239974 , 334390 , 1456985 , 2913970 , 10198895 , 20397790
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20397789
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20397790 can be divided by 32 positive divisors.
The sum of these divisors (counting 20397790) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101110011111011011110
3
Ternary
1102101022111201
4
Quaternary
1031303323132
5
Quinary
20210212130
6
Senary
2005110114
8
Octal
115637336
10
Decimal
20397790
12
Duodecimal
69b833a
16
Hexadecimal
1373ede
20
Vigesimal
679e9a
36
Base36
c571a
md5
7f73ee2c3bcd234d6e39ae64b5e9fbc6
sha1
abb84c97ed7c1adf2f77add0f838d181dfac48b6
sha256
c0f4c3ebaebf1d8983e79c5e8ec2d95f5df5fddecfaa2cbf0cb36d11f73ff132
sha512
3c5c1b80f9dfd5795de8d35d78e46bdddaada67251814fc247c846999508ec1e624558eecf4e9144d7829cb174418a1ab72b6c36a0bcdd44aed56e42a194b2a6
ripemd-160
3c88e3e4264e322987521df288d05e6389ab57f9
Diameter
40795580
Circumference
128163094.42693
Area
1.3071219429354E+15
Volume
3.5549865195184E+22
Surface area
5.2284877717416E+15
Circumference
128163094.42693
Perimeter
81591160
Area
416069836884100
Diagonal
28846831.260438
Surface area
2496419021304600
Volume
8.4869051580961E+21
Space diagonal
35330008.64212
Perimeter
61193370
Area
1.8016352424504E+14
Altitude
17665004.32106
Surface area
1.8016352424504E+14
Volume
1.0001913647628E+21
Height
9615610.4201461