20188891 is an odd 8-digits composite number following 20188890
and preceding 20188892 . In scientific notation, it is written as 2.0188891 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 20083000 positive integers (up to 20188891) that are relatively prime to 20188891.
20188891 has 4 divisors, whose sum is 20294784
The reverse of 20188891 is 19888102
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million one hundred eighty-eight thousand eight hundred ninety-one
Scientific notation
2.0188891 × 10^7
Engineering notation
2.0188891 × 10^6
Prime Factorization
191 × 105701
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20188891
Product of the distinct prime numbers
The prime factorization of 20188891 is 191 × 105701.
Since it has a total of 2 prime factors.
6 , 6 , 39 , 9 , 289 , 322 , 6363 , 1875 , 60444 , 20043 , 118614 , 560575 , 7167696 , 258350 , 35407192 , 79609663 , 937604518 , 763298581 , 7254596582 , 9834100046
n×2
40377782
n×3
60566673
n×4
80755564
n×5
100944455
n÷2
10094445.5
n÷3
6729630.3333333
n÷3
5047222.75
n÷5
4037778.2
n2
407591319809881
n3
8.2288167281878E+21
n4
1.6613068398436E+29
n5
3.3539942707157E+36
2 √n
4493.2049808572
3 √n
272.29363384192
4 √n
67.031373108845
5 √n
28.908295981823
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
-20188890
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 20188891 can be divided by 4 positive divisors.
The sum of these divisors (counting 20188891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000111011011011
3
Ternary
1101222200221201
4
Quaternary
1031000323123
5
Quinary
20132021031
6
Senary
2000415031
8
Octal
115007333
10
Decimal
20188891
12
Duodecimal
6917477
16
Hexadecimal
1340edb
20
Vigesimal
663c4b
36
Base36
c0puj
md5
ecbdfa37fa576f439813b94309d9f2ab
sha1
740e29c11713821b5d1ec798d821b808ce527c9e
sha256
ad74c21b7745a7c80ad49c46efd0d4d1c5f45f8559ff99769bd19d69101d0697
sha512
a2ef3a1f1a310e42496e8d05805a05d13013ffd18363c79fcedab81c6ea9271bae914115025bdf3c9b1c46c7c5b2fe45b10842c2cfa81c025e00858295a7e862
ripemd-160
b9f6220c8f17eb505fd85bc0e2a3c948b6c4a973
Diameter
40377782
Circumference
126850543.29945
Area
1.2804858959817E+15
Volume
3.4468786908016E+22
Surface area
5.1219435839268E+15
Circumference
126850543.29945
Perimeter
80755564
Area
407591319809881
Diagonal
28551403.461472
Surface area
2445547918859286
Volume
8.2288167281878E+21
Space diagonal
34968184.96047
Perimeter
60566673
Area
1.7649221865869E+14
Altitude
17484092.480235
Surface area
1.7649221865869E+14
Volume
9.6977535160715E+20
Height
9517134.4871574