20109891 is an odd 8-digits composite number following 20109890
and preceding 20109892 . In scientific notation, it is written as 2.0109891 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 13406592 positive integers (up to 20109891) that are relatively prime to 20109891.
20109891 has 4 divisors, whose sum is 26813192
The reverse of 20109891 is 19890102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred nine thousand eight hundred ninety-one
Scientific notation
2.0109891 × 10^7
Engineering notation
2.0109891 × 10^6
Prime Factorization
3 × 6703297
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20109891
Product of the distinct prime numbers
The prime factorization of 20109891 is 3 × 6703297.
Since it has a total of 2 prime factors.
2 , 4 , 60 , 8 , 191 , 483 , 4006 , 421 , 92997 , 7230 , 773603 , 835845 , 7347839 , 9534240 , 78100686 , 53289560 , 408611704 , 216019169 , 8956922529 , 5679471284
n×2
40219782
n×3
60329673
n×4
80439564
n×5
100549455
n÷2
10054945.5
n÷3
6703297
n÷3
5027472.75
n÷5
4021978.2
n2
404407716031881
n3
8.1325950889601E+21
n4
1.6354560078612E+29
n5
3.2888842053384E+36
2 √n
4484.4053117442
3 √n
271.93800400059
4 √n
66.965702503179
5 √n
28.88563660572
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
-20109890
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 20109891 can be divided by 4 positive divisors.
The sum of these divisors (counting 20109891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101101101001000011
3
Ternary
1101211200120210
4
Quaternary
1030231221003
5
Quinary
20122004031
6
Senary
1555005203
8
Octal
114555103
10
Decimal
20109891
12
Duodecimal
6899803
16
Hexadecimal
132da43
20
Vigesimal
65deeb
36
Base36
bz0w3
md5
5bc7952563b17f331cc3b6774737c68b
sha1
20eda2fb93d499f0596212a63f9e2142f8708e42
sha256
edc26ffefecf4d02d658c338d41e972d9895cbbaf1f80a089ffaae194b9de1dc
sha512
241179ea407b82a8a5f03bf2b5f58f14c751aa1e5cff2502621605f715eca85aa40b1a76078e0494363d199ababeb06529933130112abba582b744ec0560fa93
ripemd-160
9df7012d6c74457f65030b4764fc60ecddcd48e8
Diameter
40219782
Circumference
126354171.66018
Area
1.2704843097408E+15
Volume
3.406573464813E+22
Surface area
5.0819372389631E+15
Circumference
126354171.66018
Perimeter
80439564
Area
404407716031881
Diagonal
28439680.590045
Surface area
2426446296191286
Volume
8.1325950889601E+21
Space diagonal
34831352.946672
Perimeter
60329673
Area
1.7511367778503E+14
Altitude
17415676.473336
Surface area
1.7511367778503E+14
Volume
9.5843552267468E+20
Height
9479893.5300149