20145894 is an even 8-digits composite number following 20145893
and preceding 20145895 . In scientific notation, it is written as 2.0145894 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 6483680 positive integers (up to 20145894) that are relatively prime to 20145894.
20145894 has 16 divisors, whose sum is 41681520
The reverse of 20145894 is 49854102
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million one hundred forty-five thousand eight hundred ninety-four
Scientific notation
2.0145894 × 10^7
Engineering notation
2.0145894 × 10^6
Prime Factorization
2 × 3 × 29 × 115781
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20145894
Product of the distinct prime numbers
The prime factorization of 20145894 is 2 × 3 × 29 × 115781.
Since it has a total of 4 prime factors.
3 , 2 , 94 , 97 , 753 , 352 , 5610 , 1919 , 41088 , 6043 , 999898 , 259384 , 3803269 , 8814692 , 92036534 , 87675661 , 827613068 , 209248071 , 271003087 , 1383072865
n×2
40291788
n×3
60437682
n×4
80583576
n×5
100729470
n÷2
10072947
n÷3
6715298
n÷3
5036473.5
n÷5
4029178.8
n2
405857045059236
n3
8.1763530089166E+21
n4
1.6471994102421E+29
n5
3.3184304715601E+36
2 √n
4488.4177613052
3 √n
272.10019196779
4 √n
66.995654794212
5 √n
28.89597207323
1 , 2 , 3 , 6 , 29 , 58 , 87 , 174 , 115781 , 231562 , 347343 , 694686 , 3357649 , 6715298 , 10072947 , 20145894
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
-20145893
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 20145894 can be divided by 16 positive divisors.
The sum of these divisors (counting 20145894) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110110011011100110
3
Ternary
1101220111222020
4
Quaternary
1030312123212
5
Quinary
20124132034
6
Senary
1555444010
8
Octal
114663346
10
Decimal
20145894
12
Duodecimal
68b6606
16
Hexadecimal
13366e6
20
Vigesimal
65i4ee
36
Base36
bzso6
md5
50b16d94169bdc92351b79db6b033804
sha1
0b6a7c35a8cc9da40ec71af4356027494d8bef89
sha256
0940f58dc98b0bf81e52576950a359dcff09b6406807f7c29b3325a0c5dfbc07
sha512
072b0bd10a7a035ad639050e9b4a72787781a5715f987eee75376b7f70c28e912578ac63b5341a3db1c7591b84bf2682a7ed07a09f10750b2c55f862f02ee2bf
ripemd-160
68ce2d815963cbaa916a854b763a66cc57e21736
Diameter
40291788
Circumference
126580385.1808
Area
1.2750375111658E+15
Volume
3.4249027394626E+22
Surface area
5.100150044663E+15
Circumference
126580385.1808
Perimeter
80583576
Area
405857045059236
Diagonal
28490596.520931
Surface area
2435142270355416
Volume
8.1763530089166E+21
Space diagonal
34893711.971897
Perimeter
60437682
Area
1.7574125566309E+14
Altitude
17446855.985948
Surface area
1.7574125566309E+14
Volume
9.6359244299666E+20
Height
9496865.5069769