20247945 is an odd 8-digits composite number following 20247944
and preceding 20247946 . In scientific notation, it is written as 2.0247945 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 10289664 positive integers (up to 20247945) that are relatively prime to 20247945.
20247945 has 16 divisors, whose sum is 22636800
The reverse of 20247945 is 54974202
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million two hundred forty-seven thousand nine hundred forty-five
Scientific notation
2.0247945 × 10^7
Engineering notation
2.0247945 × 10^6
Prime Factorization
15 × 89 × 29 × 523
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20247945
Product of the distinct prime numbers
The prime factorization of 20247945 is 15 × 89 × 29 × 523.
Since it has a total of 4 prime factors.
3 , 2 , 91 , 70 , 887 , 601 , 8957 , 1557 , 81105 , 2816 , 900288 , 672833 , 23647 , 3747535 , 9155165 , 6773952 , 700480676 , 542276062 , 2528872072 , 3854584031
n×2
40495890
n×3
60743835
n×4
80991780
n×5
101239725
n÷2
10123972.5
n÷3
6749315
n÷3
5061986.25
n÷5
4049589
n2
409979276723025
n3
8.3012378462276E+21
n4
1.6808300734233E+29
n5
3.4033354881022E+36
2 √n
4499.7716608735
3 √n
272.55886840842
4 √n
67.08033736404
5 √n
28.925188010144
1 , 15 , 29 , 89 , 435 , 523 , 1335 , 2581 , 7845 , 15167 , 38715 , 46547 , 227505 , 698205 , 1349863 , 20247945
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20247944
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20247945 can be divided by 16 positive divisors.
The sum of these divisors (counting 20247945) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101001111010110001001
3
Ternary
1102002200221220
4
Quaternary
1031033112021
5
Quinary
20140413240
6
Senary
2001552253
8
Octal
115172611
10
Decimal
20247945
12
Duodecimal
6945689
16
Hexadecimal
134f589
20
Vigesimal
66ajh5
36
Base36
c1zex
md5
0b0adda62a879dbbad64765e2f863c21
sha1
01eae2ec14d170bb5832b25e3eba40a5a5ca6064
sha256
4e13e6cb827a925b7e84f6e345cfc5c4b3dca3bdae862938864fa7b969f9d931
sha512
247f5bf574011a93537141a13111422aef1d56a07bc1ffe64892eadecb05c9b2bfc9eaf5eaa1fa09f9d7d65a8029517d65059edeb3d7ffd4677bbd3edb39283d
ripemd-160
19af6a728fd5bdc729903c636aaab6d47e105b9a
Diameter
40495890
Circumference
127221590.52458
Area
1.2879878838771E+15
Volume
3.477214377788E+22
Surface area
5.1519515355084E+15
Circumference
127221590.52458
Perimeter
80991780
Area
409979276723025
Diagonal
28634918.429185
Surface area
2459875660338150
Volume
8.3012378462276E+21
Space diagonal
35070469.48886
Perimeter
60743835
Area
1.7752623433365E+14
Altitude
17535234.74443
Surface area
1.7752623433365E+14
Volume
9.7831026221832E+20
Height
9544972.8097282