20189887 is an odd 8-digits composite number following 20189886
and preceding 20189888 . In scientific notation, it is written as 2.0189887 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 6 positive divisors.
There are 19492872 positive integers (up to 20189887) that are relatively prime to 20189887.
20189887 has 6 divisors, whose sum is 20910968
The reverse of 20189887 is 78898102
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million one hundred eighty-nine thousand eight hundred eighty-seven
Scientific notation
2.0189887 × 10^7
Engineering notation
2.0189887 × 10^6
Prime Factorization
29 × 29 × 24007
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
696203
Product of the distinct prime numbers
The prime factorization of 20189887 is 29 × 29 × 24007.
Since it has a total of 3 prime factors.
9 , 6 , 99 , 65 , 460 , 558 , 3913 , 7693 , 14560 , 84341 , 566023 , 938625 , 3274776 , 7229864 , 49411044 , 43134933 , 160572629 , 243677074 , 387658611 , 1146942563
n×2
40379774
n×3
60569661
n×4
80759548
n×5
100949435
n÷2
10094943.5
n÷3
6729962.3333333
n÷3
5047471.75
n÷5
4037977.4
n2
407631537072769
n3
8.2300346711355E+21
n4
1.6616347001631E+29
n5
3.3548216831572E+36
2 √n
4493.3158135168
3 √n
272.29811155196
4 √n
67.03219982603
5 √n
28.908581208928
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20189886
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20189887 can be divided by 6 positive divisors.
The sum of these divisors (counting 20189887) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001101000001001010111111
3
Ternary
1101222202022121
4
Quaternary
1031001022333
5
Quinary
20132034022
6
Senary
2000423411
8
Octal
115011277
10
Decimal
20189887
12
Duodecimal
6917b67
16
Hexadecimal
13412bf
20
Vigesimal
663ee7
36
Base36
c0qm7
md5
18bb14e79f8457abf856df378272abca
sha1
cc44dc07a8d91aa4d131c11c8c3fbd9cb9ce3fda
sha256
8e89a169a5b24e1f11ee896ec60156eb0de92efc8703e5a52f61b454b705174e
sha512
466ba962c8cbdb1de5dab35e4bc5ed369171bd2b070538defe0d6034bce3faf75c34ed64298439b569d55e205651e03d5e7284c3e733b79a9bab975b1ff95571
ripemd-160
59aca9691369ba7df6eb74912e1a4d05ab30c962
Diameter
40379774
Circumference
126856801.35202
Area
1.2806122422393E+15
Volume
3.4473888615505E+22
Surface area
5.1224489689573E+15
Circumference
126856801.35202
Perimeter
80759548
Area
407631537072769
Diagonal
28552812.01818
Surface area
2445789222436614
Volume
8.2300346711355E+21
Space diagonal
34969910.083074
Perimeter
60569661
Area
1.7650963324436E+14
Altitude
17484955.041537
Surface area
1.7650963324436E+14
Volume
9.6991888756005E+20
Height
9517604.0060601