20208749 is an odd 8-digits composite number following 20208748
and preceding 20208750 . In scientific notation, it is written as 2.0208749 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 18371580 positive integers (up to 20208749) that are relatively prime to 20208749.
20208749 has 4 divisors, whose sum is 22045920
The reverse of 20208749 is 94780202
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million two hundred eight thousand seven hundred forty-nine
Scientific notation
2.0208749 × 10^7
Engineering notation
2.0208749 × 10^6
Prime Factorization
11 × 1837159
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20208749
Product of the distinct prime numbers
The prime factorization of 20208749 is 11 × 1837159.
Since it has a total of 2 prime factors.
10 , 4 , 48 , 88 , 44 , 970 , 8064 , 1448 , 37921 , 62409 , 130990 , 459102 , 5870284 , 8839883 , 912109 , 14878300 , 27244597 , 981494963 , 2344522213 , 4279138971
n×2
40417498
n×3
60626247
n×4
80834996
n×5
101043745
n÷2
10104374.5
n÷3
6736249.6666667
n÷3
5052187.25
n÷5
4041749.8
n2
408393536145001
n3
8.2531224651768E+21
n4
1.6678528036502E+29
n5
3.3705218677913E+36
2 √n
4495.4142189569
3 √n
272.38288152254
4 √n
67.047850218757
5 √n
28.913980644878
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
-20208748
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 20208749 can be divided by 4 positive divisors.
The sum of these divisors (counting 20208749) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000101110001101101
3
Ternary
1102000201012012
4
Quaternary
1031011301231
5
Quinary
20133134444
6
Senary
2001051005
8
Octal
115056155
10
Decimal
20208749
12
Duodecimal
6926a65
16
Hexadecimal
1345c6d
20
Vigesimal
6661h9
36
Base36
c1565
md5
d848c1ffbe9c8f47a9fe61d08169fbcf
sha1
72d16bf4f4a77800688a126eda6fcdfabd04553c
sha256
a2b8b9f57948daaa95c04d902c9731e3d25b328f9b3fa3c6737d0920e7e46b85
sha512
85a8f9e253fc33f1066c7829a14778d3c7d974505c7d237cf94e051ebbfecc804b5f5e85b51cc1d77575beb7d827760d2577b3b5f35c10c6076c5c6e0f3c1c36
ripemd-160
6c740eb2b877178611199824d65017d5bc515b0c
Diameter
40417498
Circumference
126975314.79328
Area
1.2830061329267E+15
Volume
3.4570598541035E+22
Surface area
5.1320245317068E+15
Circumference
126975314.79328
Perimeter
80834996
Area
408393536145001
Diagonal
28579486.914394
Surface area
2450361216870006
Volume
8.2531224651768E+21
Space diagonal
35002580.025407
Perimeter
60626247
Area
1.7683958852146E+14
Altitude
17501290.012703
Surface area
1.7683958852146E+14
Volume
9.7263981018159E+20
Height
9526495.6381312