20191025 is an odd 8-digits composite number following 20191024
and preceding 20191026 . In scientific notation, it is written as 2.0191025 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 16116240 positive integers (up to 20191025) that are relatively prime to 20191025.
20191025 has 8 divisors, whose sum is 21046272
The reverse of 20191025 is 52019102
Previous prime number is 743
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred ninety-one thousand twenty-five
Scientific notation
2.0191025 × 10^7
Engineering notation
2.0191025 × 10^6
Prime Factorization
25 × 743 × 1087
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20191025
Product of the distinct prime numbers
The prime factorization of 20191025 is 25 × 743 × 1087.
Since it has a total of 3 prime factors.
9 , 3 , 40 , 86 , 913 , 536 , 8886 , 6564 , 77073 , 27521 , 842819 , 94918 , 1319966 , 7593544 , 48676711 , 53783958 , 249508438 , 292558165 , 5972472225 , 1502380493
n×2
40382050
n×3
60573075
n×4
80764100
n×5
100955125
n÷2
10095512.5
n÷3
6730341.6666667
n÷3
5047756.25
n÷5
4038205
n2
407677490550625
n3
8.2314264036449E+21
n4
1.6620093630165E+29
n5
3.3557672598901E+36
2 √n
4493.4424442737
3 √n
272.30322747013
4 √n
67.033144371077
5 √n
28.908907087163
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
-20191024
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 20191025 can be divided by 8 positive divisors.
The sum of these divisors (counting 20191025) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001011100110001
3
Ternary
1101222210212202
4
Quaternary
1031001130301
5
Quinary
20132103100
6
Senary
2000432545
8
Octal
115013461
10
Decimal
20191025
12
Duodecimal
6918755
16
Hexadecimal
1341731
20
Vigesimal
663hb5
36
Base36
c0rht
md5
fef570c4442d8171a73b347e2e2634b8
sha1
f11d5fff1c26c5560586927dd08c7540f160a7d9
sha256
2c789b4e4c1f56b9be430553dba8796240befe0293d55201f9cb9e22a834aea8
sha512
0b34aecffc6582b33f286974c20b93f0e023e2f23fedb4b3e9e46002170d19e28bb791e2112e764dcadd0f79a62a496cad37b57c12a57d91f809522ad37a5744
ripemd-160
36db84319ca5d99926663a1b846ad2c6fe5b9478
Diameter
40382050
Circumference
126863951.6169
Area
1.2807566093478E+15
Volume
3.4479718291008E+22
Surface area
5.1230264373911E+15
Circumference
126863951.6169
Perimeter
80764100
Area
407677490550625
Diagonal
28554421.393214
Surface area
2446064943303750
Volume
8.2314264036449E+21
Space diagonal
34971881.156893
Perimeter
60573075
Area
1.7652953168397E+14
Altitude
17485940.578447
Surface area
1.7652953168397E+14
Volume
9.7008290480922E+20
Height
9518140.4644047