20193978 is an even 8-digits composite number following 20193977
and preceding 20193979 . In scientific notation, it is written as 2.0193978 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 5769624 positive integers (up to 20193978) that are relatively prime to 20193978.
20193978 has 16 divisors, whose sum is 36267264
The reverse of 20193978 is 87939102
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million one hundred ninety-three thousand nine hundred seventy-eight
Scientific notation
2.0193978 × 10^7
Engineering notation
2.0193978 × 10^6
Prime Factorization
2 × 21 × 7 × 68687
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20193978
Product of the distinct prime numbers
The prime factorization of 20193978 is 2 × 21 × 7 × 68687.
Since it has a total of 4 prime factors.
9 , 2 , 57 , 63 , 439 , 500 , 2901 , 2442 , 29875 , 12944 , 533628 , 926720 , 3928212 , 2689267 , 72919224 , 7461891 , 245429810 , 13935038 , 3400760443 , 2974289022
n×2
40387956
n×3
60581934
n×4
80775912
n×5
100969890
n÷2
10096989
n÷3
6731326
n÷3
5048494.5
n÷5
4038795.6
n2
407796747464484
n3
8.2350385467693E+21
n4
1.6629818724261E+29
n5
3.3582219346172E+36
2 √n
4493.771022204
3 √n
272.31650188673
4 √n
67.035595187959
5 √n
28.909752641155
1 , 2 , 7 , 14 , 21 , 42 , 147 , 294 , 68687 , 137374 , 480809 , 961618 , 1442427 , 2884854 , 10096989 , 20193978
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20193977
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20193978 can be divided by 16 positive divisors.
The sum of these divisors (counting 20193978) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000010001010111010
3
Ternary
1101222221221010
4
Quaternary
1031002022322
5
Quinary
20132201403
6
Senary
2000454350
8
Octal
115021272
10
Decimal
20193978
12
Duodecimal
691a3b6
16
Hexadecimal
13422ba
20
Vigesimal
6644ii
36
Base36
c0tru
md5
5a33b7c22db3ebaeda0c825ac8e62759
sha1
571e80d56e44525a942671ea5e84c7b7c50ba2fc
sha256
ef1d47e4dca15598f9fe5c4b4a35f601bd05fc08579a45abf9ad0dd39d2f3a12
sha512
6ab052ad7e0361162c88a4a95fc428d9ce4983f2ab20dfe7cac2108fe8e3206ea9823eb19743d3e9cc4e25964666facc5917e1a9ed2c06c38a99ef3160229cce
ripemd-160
3c9b6cc695680a0bec887a140bae09e0b381eaf9
Diameter
40387956
Circumference
126882505.86311
Area
1.2811312659922E+15
Volume
3.4494848800746E+22
Surface area
5.1245250639689E+15
Circumference
126882505.86311
Perimeter
80775912
Area
407796747464484
Diagonal
28558597.565864
Surface area
2446780484786904
Volume
8.2350385467693E+21
Space diagonal
34976995.902928
Perimeter
60581934
Area
1.7658117144246E+14
Altitude
17488497.951464
Surface area
1.7658117144246E+14
Volume
9.7050859995887E+20
Height
9519532.5219546