21153018 is an even 8-digits composite number following 21153017
and preceding 21153019 . In scientific notation, it is written as 2.1153018 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 7038816 positive integers (up to 21153018) that are relatively prime to 21153018.
21153018 has 16 divisors, whose sum is 42379200
The reverse of 21153018 is 81035112
Previous prime number is 647
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million one hundred fifty-three thousand eighteen
Scientific notation
2.1153018 × 10^7
Engineering notation
2.1153018 × 10^6
Prime Factorization
2 × 3 × 647 × 5449
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21153018
Product of the distinct prime numbers
The prime factorization of 21153018 is 2 × 3 × 647 × 5449.
Since it has a total of 4 prime factors.
1 , 9 , 87 , 54 , 794 , 551 , 8215 , 2860 , 51374 , 70865 , 464778 , 810270 , 8430050 , 7780629 , 56023620 , 4248592 , 772983073 , 781070996 , 8321220779 , 6743135494
n×2
42306036
n×3
63459054
n×4
84612072
n×5
105765090
n÷2
10576509
n÷3
7051006
n÷3
5288254.5
n÷5
4230603.6
n2
447450170508324
n3
9.4649215108656E+21
n4
2.0021165508793E+29
n5
4.2350807438847E+36
2 √n
4599.241024343
3 √n
276.56089987902
4 √n
67.81770435766
5 √n
29.179273035103
1 , 2 , 3 , 6 , 647 , 1294 , 1941 , 3882 , 5449 , 10898 , 16347 , 32694 , 3525503 , 7051006 , 10576509 , 21153018
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
-21153017
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 21153018 can be divided by 16 positive divisors.
The sum of these divisors (counting 21153018) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000101100010011111010
3
Ternary
1110210200111010
4
Quaternary
1100230103322
5
Quinary
20403344033
6
Senary
2033214350
8
Octal
120542372
10
Decimal
21153018
12
Duodecimal
71013b6
16
Hexadecimal
142c4fa
20
Vigesimal
6c42ai
36
Base36
cldru
md5
4fb4b8082e477b7a9cab93e704a740c8
sha1
65d911d5e4f37e64b3a64831026aaafa45f75c77
sha256
a981307582eed381febd593b057507abc378d362197a931a93253c40c73ecf1a
sha512
9abdcef6b2bff75f87881db06587fb43812256a8006baefbd435f1c93ce2bfb770f683b83bebaedc6ccc0a548d31f970d0a56851abdecbb045a46b84af3c4898
ripemd-160
11f78d873675cb9d33cc9cac0db4b3bfc3ece192
Diameter
42306036
Circumference
132908331.90011
Area
1.4057061685165E+15
Volume
3.9646570513786E+22
Surface area
5.6228246740658E+15
Circumference
132908331.90011
Perimeter
84612072
Area
447450170508324
Diagonal
29914884.940722
Surface area
2684701023049944
Volume
9.4649215108656E+21
Space diagonal
36638101.909419
Perimeter
63459054
Area
1.9375160729394E+14
Altitude
18319050.954709
Surface area
1.9375160729394E+14
Volume
1.1154516972886E+21
Height
9971628.3135741