20081091 is an odd 8-digits composite number following 20081090
and preceding 20081092 . In scientific notation, it is written as 2.0081091 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13387392 positive integers (up to 20081091) that are relatively prime to 20081091.
20081091 has 4 divisors, whose sum is 26774792
The reverse of 20081091 is 19018002
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million eighty-one thousand ninety-one
Scientific notation
2.0081091 × 10^7
Engineering notation
2.0081091 × 10^6
Prime Factorization
3 × 6693697
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20081091
Product of the distinct prime numbers
The prime factorization of 20081091 is 3 × 6693697.
Since it has a total of 2 prime factors.
4 , 10 , 44 , 96 , 38 , 35 , 7836 , 68 , 71995 , 16836 , 381300 , 115269 , 8954501 , 1433395 , 55217893 , 17833225 , 583863924 , 514260996 , 7203789041 , 5234699476
n×2
40162182
n×3
60243273
n×4
80324364
n×5
100405455
n÷2
10040545.5
n÷3
6693697
n÷3
5020272.75
n÷5
4016218.2
n2
403250215750281
n3
8.097704278251E+21
n4
1.6261073650265E+29
n5
3.2654009972867E+36
2 √n
4481.1930331107
3 √n
271.80812502344
4 √n
66.941713700134
5 √n
28.877358258475
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
-20081090
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 20081091 can be divided by 4 positive divisors.
The sum of these divisors (counting 20081091) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100100110100111000011
3
Ternary
1101210020002010
4
Quaternary
1030212213003
5
Quinary
20120043331
6
Senary
1554224003
8
Octal
114464703
10
Decimal
20081091
12
Duodecimal
6885003
16
Hexadecimal
13269c3
20
Vigesimal
65a2eb
36
Base36
byeo3
md5
902b708150fdb3ed157f2d7d0a8ef031
sha1
3f329653a65143dd349fb40386ec4f90bbcbffd4
sha256
a64f193a7df65710dac902e636d8f5fa2c9a6f09f6cfb9202f4991e79fa4961f
sha512
2463141ff4ad069215116abf503887b41859f5c800eacc51d169b6a87a018513e365a2959c6bdc221efca00b6d1457b647e710c35ed9d6e6a9020a03c9991a83
ripemd-160
719f7d11a2e4181162e02b636c834c9dbd8c01ee
Diameter
40162182
Circumference
126173215.92334
Area
1.2668479153596E+15
Volume
3.3919584361995E+22
Surface area
5.0673916614383E+15
Circumference
126173215.92334
Perimeter
80324364
Area
403250215750281
Diagonal
28398951.239448
Surface area
2419501294501686
Volume
8.097704278251E+21
Space diagonal
34781469.883414
Perimeter
60243273
Area
1.7461246546065E+14
Altitude
17390734.941707
Surface area
1.7461246546065E+14
Volume
9.543236011991E+20
Height
9466317.0798161