20506749 is an odd 8-digits composite number following 20506748
and preceding 20506750 . In scientific notation, it is written as 2.0506749 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13671164 positive integers (up to 20506749) that are relatively prime to 20506749.
20506749 has 4 divisors, whose sum is 27342336
The reverse of 20506749 is 94760502
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million five hundred six thousand seven hundred forty-nine
Scientific notation
2.0506749 × 10^7
Engineering notation
2.0506749 × 10^6
Prime Factorization
3 × 6835583
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20506749
Product of the distinct prime numbers
The prime factorization of 20506749 is 3 × 6835583.
Since it has a total of 2 prime factors.
5 , 5 , 45 , 42 , 365 , 102 , 3147 , 1442 , 92975 , 98348 , 137618 , 887147 , 3890430 , 108318 , 43211572 , 29728980 , 926823111 , 955928169 , 939440827 , 6987032889
n×2
41013498
n×3
61520247
n×4
82026996
n×5
102533745
n÷2
10253374.5
n÷3
6835583
n÷3
5126687.25
n÷5
4101349.8
n2
420526754549001
n3
8.623636603321E+21
n4
1.7684275129152E+29
n5
3.6264699132045E+36
2 √n
4528.4378101063
3 √n
273.71521461214
4 √n
67.293668425092
5 √n
28.99875569184
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
-20506748
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 20506749 can be divided by 4 positive divisors.
The sum of these divisors (counting 20506749) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110001110100001111101
3
Ternary
1102120211222020
4
Quaternary
1032032201331
5
Quinary
20222203444
6
Senary
2011310353
8
Octal
116164175
10
Decimal
20506749
12
Duodecimal
6a4b3b9
16
Hexadecimal
138e87d
20
Vigesimal
6836h9
36
Base36
c7j3x
md5
8bf3682b022767cd91b9f6d682fa4b0c
sha1
90ccd87a55b926f01b4ef1b7e323f41ef58478eb
sha256
94b1c8183554cc5e51103a90581fb6b5b176254759b069c9fe9d8bd848362b16
sha512
71eafaa348344497fdb60c0f2b11e848d05e545d3bb832cf983baf710bd4a83c5b1a311d40fab99eaec0eb4bbdc8ba133447255471655739b414764c2c443c14
ripemd-160
ee3f6df1a2250dab914b9b6302775e2a45b42bb5
Diameter
41013498
Circumference
128847704.01482
Area
1.3211237627291E+15
Volume
3.6122604533628E+22
Surface area
5.2844950509164E+15
Circumference
128847704.01482
Perimeter
82026996
Area
420526754549001
Diagonal
29000922.555981
Surface area
2523160527294006
Volume
8.623636603321E+21
Space diagonal
35518731.166062
Perimeter
61520247
Area
1.8209342620523E+14
Altitude
17759365.583031
Surface area
1.8209342620523E+14
Volume
1.0163053201161E+21
Height
9666974.185327