20194987 is an odd 8-digits composite number following 20194986
and preceding 20194988 . In scientific notation, it is written as 2.0194987 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20185120 positive integers (up to 20194987) that are relatively prime to 20194987.
20194987 has 4 divisors, whose sum is 20204856
The reverse of 20194987 is 78949102
Previous prime number is 2897
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million one hundred ninety-four thousand nine hundred eighty-seven
Scientific notation
2.0194987 × 10^7
Engineering notation
2.0194987 × 10^6
Prime Factorization
2897 × 6971
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20194987
Product of the distinct prime numbers
The prime factorization of 20194987 is 2897 × 6971.
Since it has a total of 2 prime factors.
5 , 5 , 81 , 7 , 202 , 361 , 5770 , 9874 , 5549 , 32491 , 430530 , 780639 , 7046374 , 5185885 , 21318026 , 92600636 , 604995785 , 919413907 , 7068297316 , 4423752681
n×2
40389974
n×3
60584961
n×4
80779948
n×5
100974935
n÷2
10097493.5
n÷3
6731662.3333333
n÷3
5048746.75
n÷5
4038997.4
n2
407837499930169
n3
8.2362730092023E+21
n4
1.6633142634929E+29
n5
3.3590609928154E+36
2 √n
4493.883287314
3 √n
272.321037278
4 √n
67.036432537196
5 √n
28.910041532798
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
-20194986
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 20194987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20194987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000010011010101011
3
Ternary
1102000000022111
4
Quaternary
1031002122223
5
Quinary
20132214422
6
Senary
2000503151
8
Octal
115023253
10
Decimal
20194987
12
Duodecimal
691aab7
16
Hexadecimal
13426ab
20
Vigesimal
664797
36
Base36
c0ujv
md5
e1ccc0b4bab5c75f527d8130f3bfc9ad
sha1
0d84ae354acde8beb9d534df645215769697bc59
sha256
741454f25ef374694ea7d2699661e38fb79fb98968a05a633a98e1a9986a3736
sha512
95cba77ffb78623386819bb440b01e2034ff07e77f4d49992758f16545f3e3890d51c2f11cfee95d00aa5973fdd319b129f602890874d9c3d7fce07e8c2950fb
ripemd-160
1d5af4cd71290aa075d9b5acc5bb6198516a63a2
Diameter
40389974
Circumference
126888845.59708
Area
1.281259293639E+15
Volume
3.4500019704893E+22
Surface area
5.1250371745562E+15
Circumference
126888845.59708
Perimeter
80779948
Area
407837499930169
Diagonal
28560024.507348
Surface area
2447024999581014
Volume
8.2362730092023E+21
Space diagonal
34978743.542193
Perimeter
60584961
Area
1.7659881777773E+14
Altitude
17489371.771096
Surface area
1.7659881777773E+14
Volume
9.7065408275178E+20
Height
9520008.1691161