20686949 is an odd 8-digits prime number following 20686948
and preceding 20686950 . In scientific notation, it is written as 2.0686949 × 10^7.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 20686948 positive integers (up to 20686949) that are relatively prime to 20686949.
20686949 has 2 divisors, whose sum is 20686950
The reverse of 20686949 is 94968602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million six hundred eighty-six thousand nine hundred forty-nine
Scientific notation
2.0686949 × 10^7
Engineering notation
2.0686949 × 10^6
Prime Factorization
20686949
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20686949
Product of the distinct prime numbers
The prime factorization of 20686949 is 20686949.
Since it has a total of 1 prime factors.
9 , 7 , 45 , 5 , 321 , 789 , 8996 , 7718 , 25727 , 77845 , 748499 , 162175 , 2225392 , 6392965 , 92746218 , 65615311 , 711494444 , 628262026 , 5608314924 , 7428667328
n×2
41373898
n×3
62060847
n×4
82747796
n×5
103434745
n÷2
10343474.5
n÷3
6895649.6666667
n÷3
5171737.25
n÷5
4137389.8
n2
427949858928601
n3
8.8529769062132E+21
n4
1.8314108175701E+29
n5
3.7886302181121E+36
2 √n
4548.2907778637
3 √n
274.51462149072
4 √n
67.441017028687
5 √n
29.049541942143
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20686950
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10343475
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4548.2908877951
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999033207
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20686949 can be divided by 2 positive divisors.
The sum of these divisors (counting 20686949) is 20686950, the average is 10343475.
Base
System
Value
2
Binary
1001110111010100001100101
3
Ternary
1102221000011022
4
Quaternary
1032322201211
5
Quinary
20243440244
6
Senary
2015220525
8
Octal
116724145
10
Decimal
20686949
12
Duodecimal
6b17745
16
Hexadecimal
13ba865
20
Vigesimal
695h79
36
Base36
cbe5h
md5
6f95397ff9e0b7f47347012d03bcd896
sha1
57519be11ea38083edc57e3db764cffb33ef1a72
sha256
ec166027334b8a14401b733e786df560122713e61c17cd14b125e65f82d404dd
sha512
63ec67a6347d8c2e6cc9387ad6b2e8f3dd784319007f56a6b794be93add8a527ae618ee1eb4dae8d2ba82ee3344d6a0f353cf9a00a8925030b1d4d71255818e2
ripemd-160
f54f4cee0c09e69d6374375a85d5b563a7ba4941
Diameter
41373898
Circumference
129979934.00717
Area
1.3444441329149E+15
Volume
3.7083262947946E+22
Surface area
5.3777765316595E+15
Circumference
129979934.00717
Perimeter
82747796
Area
427949858928601
Diagonal
29255763.839921
Surface area
2567699153571606
Volume
8.8529769062132E+21
Space diagonal
35830846.721586
Perimeter
62060847
Area
1.8530772468907E+14
Altitude
17915423.360793
Surface area
1.8530772468907E+14
Volume
1.0433333340119E+21
Height
9751921.2799735