20190865 is an odd 8-digits composite number following 20190864
and preceding 20190866 . In scientific notation, it is written as 2.0190865 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 15776880 positive integers (up to 20190865) that are relatively prime to 20190865.
20190865 has 8 divisors, whose sum is 24792768
The reverse of 20190865 is 56809102
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred ninety thousand eight hundred sixty-five
Scientific notation
2.0190865 × 10^7
Engineering notation
2.0190865 × 10^6
Prime Factorization
5 × 43 × 93911
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20190865
Product of the distinct prime numbers
The prime factorization of 20190865 is 5 × 43 × 93911.
Since it has a total of 3 prime factors.
7 , 6 , 96 , 12 , 643 , 142 , 3473 , 8138 , 1290 , 87839 , 40528 , 454427 , 881963 , 4426723 , 650094 , 25421186 , 569018643 , 819544084 , 3129368225 , 7675632772
n×2
40381730
n×3
60572595
n×4
80763460
n×5
100954325
n÷2
10095432.5
n÷3
6730288.3333333
n÷3
5047716.25
n÷5
4038173
n2
407671029448225
n3
8.2312307200001E+21
n4
1.6619566825138E+29
n5
3.3556343012483E+36
2 √n
4493.4246405164
3 √n
272.30250819623
4 √n
67.03301157278
5 √n
28.908861270372
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20190864
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20190865 can be divided by 8 positive divisors.
The sum of these divisors (counting 20190865) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001011010010001
3
Ternary
1101222210122211
4
Quaternary
1031001122101
5
Quinary
20132101430
6
Senary
2000432121
8
Octal
115013221
10
Decimal
20190865
12
Duodecimal
6918641
16
Hexadecimal
1341691
20
Vigesimal
663h35
36
Base36
c0rdd
md5
4d64eef7cfbd3da863bea7ce166b373e
sha1
d129133bbc76a24c4776938dc135e58dc7d9de16
sha256
e7f249eb69348293903f309a5ea6c4ca7de8d58d9b3554433b4c539507243874
sha512
3a37ab25cd2580f07e4d021a854e81e63d01f915ee0d0ac119921933b0018af27ba6ddf3f5a0e83202949c91e0c528e51bb57d58cebbeeafaca796199b3899fe
ripemd-160
17fb3bc111425eb393c9aa501a7bf2b7c72b899b
Diameter
40381730
Circumference
126862946.30725
Area
1.2807363111959E+15
Volume
3.4478898613273E+22
Surface area
5.1229452447837E+15
Circumference
126862946.30725
Perimeter
80763460
Area
407671029448225
Diagonal
28554195.119044
Surface area
2446026176689350
Volume
8.2312307200001E+21
Space diagonal
34971604.028764
Perimeter
60572595
Area
1.7652673394456E+14
Altitude
17485802.014382
Surface area
1.7652673394456E+14
Volume
9.7005984327052E+20
Height
9518065.0396814