20186491 is an odd 8-digits composite number following 20186490
and preceding 20186492 . In scientific notation, it is written as 2.0186491 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 18633672 positive integers (up to 20186491) that are relatively prime to 20186491.
20186491 has 4 divisors, whose sum is 21739312
The reverse of 20186491 is 19468102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred eighty-six thousand four hundred ninety-one
Scientific notation
2.0186491 × 10^7
Engineering notation
2.0186491 × 10^6
Prime Factorization
13 × 1552807
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20186491
Product of the distinct prime numbers
The prime factorization of 20186491 is 13 × 1552807.
Since it has a total of 2 prime factors.
2 , 10 , 31 , 90 , 225 , 351 , 508 , 9154 , 85430 , 9510 , 278590 , 860827 , 9058274 , 2522437 , 42214787 , 82976621 , 650011927 , 524397301 , 1347834607 , 4971240909
n×2
40372982
n×3
60559473
n×4
80745964
n×5
100932455
n÷2
10093245.5
n÷3
6728830.3333333
n÷3
5046622.75
n÷5
4037298.2
n2
407494418893081
n3
8.2258824195354E+21
n4
1.6605170142901E+29
n5
3.3520011764314E+36
2 √n
4492.9379029762
3 √n
272.28284357417
4 √n
67.029380893577
5 √n
28.907608641348
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
-20186490
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 20186491 can be divided by 4 positive divisors.
The sum of these divisors (counting 20186491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000010101111011
3
Ternary
1101222120122211
4
Quaternary
1031000111323
5
Quinary
20131431431
6
Senary
2000355551
8
Octal
115002573
10
Decimal
20186491
12
Duodecimal
6915bb7
16
Hexadecimal
134057b
20
Vigesimal
66364b
36
Base36
c0nzv
md5
808a7db5b24f6169a04599eb74e37ef3
sha1
1e4d939bb163770e544367955d32db9fb85f70a2
sha256
ad015e898af1d0300715ba3787f44e0f53313e26dfcfd9a75a4a00df809be1d4
sha512
0425964c21402e34cc31f3a91876b4fc14634ad37a85fbe7c4ae99b0f61ced815465bc53c13583e2088c5e0ffa4ea677819724362266a1f9cda0ed513d8acca1
ripemd-160
266f8abf2288cc79b1158144c1e2d410fbf70388
Diameter
40372982
Circumference
126835463.65471
Area
1.2801814727733E+15
Volume
3.4456495704674E+22
Surface area
5.1207258910934E+15
Circumference
126835463.65471
Perimeter
80745964
Area
407494418893081
Diagonal
28548009.348922
Surface area
2444966513358486
Volume
8.2258824195354E+21
Space diagonal
34964028.038532
Perimeter
60559473
Area
1.7645025933089E+14
Altitude
17482014.019266
Surface area
1.7645025933089E+14
Volume
9.6942954001612E+20
Height
9516003.1163075