20188791 is an odd 8-digits composite number following 20188790
and preceding 20188792 . In scientific notation, it is written as 2.0188791 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 11220768 positive integers (up to 20188791) that are relatively prime to 20188791.
20188791 has 16 divisors, whose sum is 24143680
The reverse of 20188791 is 19788102
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million one hundred eighty-eight thousand seven hundred ninety-one
Scientific notation
2.0188791 × 10^7
Engineering notation
2.0188791 × 10^6
Prime Factorization
21 × 9 × 37 × 2887
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20188791
Product of the distinct prime numbers
The prime factorization of 20188791 is 21 × 9 × 37 × 2887.
Since it has a total of 4 prime factors.
7 , 5 , 86 , 63 , 351 , 240 , 1812 , 6956 , 87049 , 77212 , 198511 , 538271 , 3858701 , 7875390 , 12404076 , 87888782 , 115850545 , 962261835 , 5538310078 , 2324206114
n×2
40377582
n×3
60566373
n×4
80755164
n×5
100943955
n÷2
10094395.5
n÷3
6729597
n÷3
5047197.75
n÷5
4037758.2
n2
407587282041681
n3
8.2286944513976E+21
n4
1.6612739248212E+29
n5
3.3539112061966E+36
2 √n
4493.1938529291
3 √n
272.29318426451
4 √n
67.031290103422
5 √n
28.908267343942
1 , 9 , 21 , 37 , 189 , 333 , 777 , 2887 , 6993 , 25983 , 60627 , 106819 , 545643 , 961371 , 2243199 , 20188791
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20188790
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20188791 can be divided by 16 positive divisors.
The sum of these divisors (counting 20188791) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000000111001110111
3
Ternary
1101222200211000
4
Quaternary
1031000321313
5
Quinary
20132020131
6
Senary
2000414343
8
Octal
115007167
10
Decimal
20188791
12
Duodecimal
69173b3
16
Hexadecimal
1340e77
20
Vigesimal
663bjb
36
Base36
c0prr
md5
d0375962229a648430f727c63f8c2ca4
sha1
06005b32e5d75e516038cb58f41dd8d885daad5a
sha256
7c818f21047c1a9943a28fe9add776673478fa897469b5239638cb6896c9ae7a
sha512
55dec314e0b99edeca9005098ab55ad5abf05bbeb677bd134f6061dbd234cab55a681eb1efd4927822f5eb38d9939f657a38c9272d0ddb6be5fe323fc8b9fa9f
ripemd-160
10bca8caa1e55539a63904c262be180bd98e5040
Diameter
40377582
Circumference
126849914.98092
Area
1.2804732109588E+15
Volume
3.4468274716194E+22
Surface area
5.1218928438351E+15
Circumference
126849914.98092
Perimeter
80755164
Area
407587282041681
Diagonal
28551262.040116
Surface area
2445523692250086
Volume
8.2286944513976E+21
Space diagonal
34968011.755389
Perimeter
60566373
Area
1.7649047025377E+14
Altitude
17484005.877695
Surface area
1.7649047025377E+14
Volume
9.6976094114922E+20
Height
9517087.3467053