20091788 is an even 8-digits composite number following 20091787
and preceding 20091789 . In scientific notation, it is written as 2.0091788 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors.
There are 9609072 positive integers (up to 20091788) that are relatively prime to 20091788.
20091788 has 12 divisors, whose sum is 36689520
The reverse of 20091788 is 88719002
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million ninety-one thousand seven hundred eighty-eight
Scientific notation
2.0091788 × 10^7
Engineering notation
2.0091788 × 10^6
Prime Factorization
2 × 2 × 23 × 218389
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10045894
Product of the distinct prime numbers
The prime factorization of 20091788 is 2 × 2 × 23 × 218389.
Since it has a total of 4 prime factors.
7 , 6 , 60 , 54 , 902 , 304 , 7071 , 6975 , 93775 , 48049 , 409330 , 429470 , 1951791 , 6204866 , 46931681 , 12641912 , 472520798 , 670751770 , 6793566847 , 3393257189
n×2
40183576
n×3
60275364
n×4
80367152
n×5
100458940
n÷2
10045894
n÷3
6697262.6666667
n÷3
5022947
n÷5
4018357.6
n2
403679945036944
n3
8.1106518755339E+21
n4
1.6295749802503E+29
n5
3.2741075033293E+36
2 √n
4482.3864179698
3 √n
271.85637962931
4 √n
66.950626718275
5 √n
28.880434140188
1 , 2 , 4 , 23 , 46 , 92 , 218389 , 436778 , 873556 , 5022947 , 10045894 , 20091788
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20091787
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20091788 can be divided by 12 positive divisors.
The sum of these divisors (counting 20091788) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100101001001110001100
3
Ternary
1101210202202022
4
Quaternary
1030221032030
5
Quinary
20120414123
6
Senary
1554345312
8
Octal
114511614
10
Decimal
20091788
12
Duodecimal
688b238
16
Hexadecimal
132938c
20
Vigesimal
65b998
36
Base36
bymx8
md5
f2042337cf690c400cd5b1c3e37335a9
sha1
e3712536dbd7e6223f6fb9d08c9777cd5f5afdaa
sha256
1ea6042a361d883b84ccafee2ae2c06788f3d387987c588278dec30de33463f0
sha512
87c4d363190cb77ffb18ace843f99ac2a57165b390d83f57987d74a1f8dff22e113292ba8dc5f3dfde1151b67c1d325fcfd699e98ee0a18d908a76e9d52cd6f8
ripemd-160
2fcd063977e9dbafa18859a84b2fc0e9ccf8ab60
Diameter
40183576
Circumference
126240427.15657
Area
1.2681979497296E+15
Volume
3.3973819130669E+22
Surface area
5.0727917989184E+15
Circumference
126240427.15657
Perimeter
80367152
Area
403679945036944
Diagonal
28414079.081925
Surface area
2422079670221664
Volume
8.1106518755339E+21
Space diagonal
34799997.630903
Perimeter
60275364
Area
1.7479854370015E+14
Altitude
17399998.815451
Surface area
1.7479854370015E+14
Volume
9.5584949017224E+20
Height
9471359.693975