20249905 is an odd 8-digits composite number following 20249904
and preceding 20249906 . In scientific notation, it is written as 2.0249905 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 14953728 positive integers (up to 20249905) that are relatively prime to 20249905.
20249905 has 8 divisors, whose sum is 26169192
The reverse of 20249905 is 50994202
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million two hundred forty-nine thousand nine hundred five
Scientific notation
2.0249905 × 10^7
Engineering notation
2.0249905 × 10^6
Prime Factorization
5 × 13 × 311537
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20249905
Product of the distinct prime numbers
The prime factorization of 20249905 is 5 × 13 × 311537.
Since it has a total of 3 prime factors.
9 , 2 , 4 , 54 , 526 , 780 , 371 , 4932 , 63493 , 45541 , 240248 , 325035 , 7674940 , 9537484 , 46228244 , 5877037 , 878030044 , 717605844 , 39964176 , 2459391444
n×2
40499810
n×3
60749715
n×4
80999620
n×5
101249525
n÷2
10124952.5
n÷3
6749968.3333333
n÷3
5062476.25
n÷5
4049981
n2
410058652509025
n3
8.3036487577358E+21
n4
1.6814809849752E+29
n5
3.4049830205054E+36
2 √n
4499.9894444321
3 √n
272.56766268599
4 √n
67.081960648389
5 √n
28.925747979794
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20249904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20249905 can be divided by 8 positive divisors.
The sum of these divisors (counting 20249905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101001111110100110001
3
Ternary
1102002210122111
4
Quaternary
1031033310301
5
Quinary
20140444110
6
Senary
2002005321
8
Octal
115176461
10
Decimal
20249905
12
Duodecimal
6946841
16
Hexadecimal
134fd31
20
Vigesimal
66b4f5
36
Base36
c20xd
md5
d082e8c4607cf75222771d504bc62701
sha1
0623bfcdfa51225f91a7548e6aa1f40244093bde
sha256
9eb67f9070a8cebbc1d08efb0bc905517cfad3efedf4f7673fec06f50943f709
sha512
dc6f896024bab2cef2dfcbe36dba4c99ee3f1b68386d4a70a03a69a340af48ffae031f2ecc90720c5a4d86406043ae5cfc4cd06a11075f3f9367e5561b0de045
ripemd-160
005d30e0c947819def0d16a4793844bb197ca04b
Diameter
40499810
Circumference
127233905.56778
Area
1.2882372502633E+15
Volume
3.478224258039E+22
Surface area
5.1529490010531E+15
Circumference
127233905.56778
Perimeter
80999620
Area
410058652509025
Diagonal
28637690.287767
Surface area
2460351915054150
Volume
8.3036487577358E+21
Space diagonal
35073864.308443
Perimeter
60749715
Area
1.7756060505722E+14
Altitude
17536932.154222
Surface area
1.7756060505722E+14
Volume
9.7859439086437E+20
Height
9545896.7625889