20390947 is an odd 8-digits prime number following 20390946
and preceding 20390948 . In scientific notation, it is written as 2.0390947 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 20390946 positive integers (up to 20390947) that are relatively prime to 20390947.
20390947 has 2 divisors, whose sum is 20390948
The reverse of 20390947 is 74909302
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million three hundred ninety thousand nine hundred forty-seven
Scientific notation
2.0390947 × 10^7
Engineering notation
2.0390947 × 10^6
Prime Factorization
20390947
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20390947
Product of the distinct prime numbers
The prime factorization of 20390947 is 20390947.
Since it has a total of 1 prime factors.
9 , 7 , 54 , 60 , 817 , 654 , 4363 , 7075 , 92518 , 51996 , 448005 , 203522 , 1903810 , 792566 , 17916968 , 19547151 , 357244002 , 727033210 , 166976361 , 3440375593
n×2
40781894
n×3
61172841
n×4
81563788
n×5
101954735
n÷2
10195473.5
n÷3
6796982.3333333
n÷3
5097736.75
n÷5
4078189.4
n2
415790719556809
n3
8.4783665255748E+21
n4
1.7288192246957E+29
n5
3.5252261183351E+36
2 √n
4515.633621099
3 √n
273.19901672926
4 √n
67.198464425157
5 √n
28.965930156768
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20390948
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10195474
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4515.6337318255
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999019173
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20390947 can be divided by 2 positive divisors.
The sum of these divisors (counting 20390947) is 20390948, the average is 10195474.
Base
System
Value
2
Binary
1001101110010010000100011
3
Ternary
1102100222010021
4
Quaternary
1031302100203
5
Quinary
20210002242
6
Senary
2005014311
8
Octal
115622043
10
Decimal
20390947
12
Duodecimal
69b4397
16
Hexadecimal
1372423
20
Vigesimal
678h77
36
Base36
c51r7
md5
f006b7c210fbf1c5c8f18a0c79dbd336
sha1
8265d646fb2884892bb3e729360238a7fe446631
sha256
beb40e168fb03541687ab4faa198f06149b262c8dc0e3e3f0ca4162546346810
sha512
8b991edcabdbf3ad9b13651d1700336ada5487d42b65948e2c601493f2bf99ebee6f0539dd0c323e10b099cda1b3eefba7176d1a15d05eb9c4138342ed120f3e
ripemd-160
77c283e1b23da6893751cc2c05b61af8e027193b
Diameter
40781894
Circumference
128120098.58988
Area
1.3062450699905E+15
Volume
3.5514098654916E+22
Surface area
5.2249802799619E+15
Circumference
128120098.58988
Perimeter
81563788
Area
415790719556809
Diagonal
28837153.797031
Surface area
2494744317340854
Volume
8.4783665255748E+21
Space diagonal
35318156.218444
Perimeter
61172841
Area
1.80042662897E+14
Altitude
17659078.109222
Surface area
1.80042662897E+14
Volume
9.9918507726982E+20
Height
9612384.5990103