20289991 is an odd 8-digits composite number following 20289990
and preceding 20289992 . In scientific notation, it is written as 2.0289991 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20089000 positive integers (up to 20289991) that are relatively prime to 20289991.
20289991 has 4 divisors, whose sum is 20490984
The reverse of 20289991 is 19998202
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million two hundred eighty-nine thousand nine hundred ninety-one
Scientific notation
2.0289991 × 10^7
Engineering notation
2.0289991 × 10^6
Prime Factorization
101 × 200891
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20289991
Product of the distinct prime numbers
The prime factorization of 20289991 is 101 × 200891.
Since it has a total of 2 prime factors.
1 , 9 , 38 , 52 , 110 , 337 , 6893 , 8384 , 23629 , 19956 , 601300 , 511033 , 5063817 , 5429376 , 61009914 , 14993964 , 622543599 , 85312119 , 6671907069 , 9990163258
n×2
40579982
n×3
60869973
n×4
81159964
n×5
101449955
n÷2
10144995.5
n÷3
6763330.3333333
n÷3
5072497.75
n÷5
4057998.2
n2
411683734780081
n3
8.3530592735342E+21
n4
1.6948349748248E+29
n5
3.438818638568E+36
2 √n
4504.4412528082
3 √n
272.74739925879
4 √n
67.115134305223
5 √n
28.937191001245
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
-20289990
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 20289991 can be divided by 4 positive divisors.
The sum of these divisors (counting 20289991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101011001100111000111
3
Ternary
1102011211122011
4
Quaternary
1031121213013
5
Quinary
20143234431
6
Senary
2002515051
8
Octal
115314707
10
Decimal
20289991
12
Duodecimal
6965a87
16
Hexadecimal
13599c7
20
Vigesimal
66g4jb
36
Base36
c2vuv
md5
c034548f8eefc8a44e3329cffede0e90
sha1
6eb9f34dd034618fa770adb4185c0e58cf9764da
sha256
c7e572dfee31d1930d75c4e584e1a10f96851fe2cbb7dbffbb8ba2becafce50f
sha512
7120c6b81a34e874c5fe4d116c7cdb29c2d199dfeb776c32e3bb4ad09054c667853960f1b3666a9fb4261a6860bcac62fd3ae714dfb0a93c653d9e7d55f49160
ripemd-160
eac65096d76b1616408c598c5412f4b3a33e2058
Diameter
40579982
Circumference
127485773.33401
Area
1.2933425967875E+15
Volume
3.498921286498E+22
Surface area
5.17337038715E+15
Circumference
127485773.33401
Perimeter
81159964
Area
411683734780081
Diagonal
28694380.452628
Surface area
2470102408680486
Volume
8.3530592735342E+21
Space diagonal
35143295.297115
Perimeter
60869973
Area
1.782642863222E+14
Altitude
17571647.648558
Surface area
1.782642863222E+14
Volume
9.8441747599487E+20
Height
9564793.4842093