20190915 is an odd 8-digits composite number following 20190914
and preceding 20190916 . In scientific notation, it is written as 2.0190915 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 10768464 positive integers (up to 20190915) that are relatively prime to 20190915.
20190915 has 8 divisors, whose sum is 28716032
The reverse of 20190915 is 51909102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred ninety thousand nine hundred fifteen
Scientific notation
2.0190915 × 10^7
Engineering notation
2.0190915 × 10^6
Prime Factorization
15 × 3 × 448687
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20190915
Product of the distinct prime numbers
The prime factorization of 20190915 is 15 × 3 × 448687.
Since it has a total of 3 prime factors.
8 , 6 , 44 , 12 , 255 , 803 , 6833 , 852 , 3054 , 24317 , 527221 , 915879 , 8630272 , 9918873 , 14829558 , 78515035 , 487081599 , 862863268 , 7341298691 , 9430487249
n×2
40381830
n×3
60572745
n×4
80763660
n×5
100954575
n÷2
10095457.5
n÷3
6730305
n÷3
5047728.75
n÷5
4038183
n2
407673048537225
n3
8.231291870806E+21
n4
1.6619731450363E+29
n5
3.3556758503712E+36
2 √n
4493.4302041981
3 √n
272.30273296973
4 √n
67.033053072332
5 √n
28.908875588151
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
-20190914
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 20190915 can be divided by 8 positive divisors.
The sum of these divisors (counting 20190915) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001011011000011
3
Ternary
1101222210201200
4
Quaternary
1031001123003
5
Quinary
20132102130
6
Senary
2000432243
8
Octal
115013303
10
Decimal
20190915
12
Duodecimal
6918683
16
Hexadecimal
13416c3
20
Vigesimal
663h5f
36
Base36
c0rer
md5
010ad8e0ec8ee7e81bc6676d86ac91fb
sha1
6cd9600986fe21d65c1d6d80f9696b033054e300
sha256
9372a54b6436c80c82b233d4159084e9b2b9dbf056e05096a7c1863a6c66d9a7
sha512
b5a213f8b14d98c584c31953d16c642b48c71e0aae2363fddf71c46a2f3eb215c20dd6ab8d3d602bfeeeb24d19637ad4a2ba332878e43423c998c924704b0132
ripemd-160
88812f5a179f9563ce2cd4651ed68860544465d8
Diameter
40381830
Circumference
126863260.46651
Area
1.2807426543511E+15
Volume
3.447915476117E+22
Surface area
5.1229706174044E+15
Circumference
126863260.46651
Perimeter
80763660
Area
407673048537225
Diagonal
28554265.829722
Surface area
2446038291223350
Volume
8.231291870806E+21
Space diagonal
34971690.631305
Perimeter
60572745
Area
1.7652760823574E+14
Altitude
17485845.315652
Surface area
1.7652760823574E+14
Volume
9.700670499621E+20
Height
9518088.6099075