21502018 is an even 8-digits composite number following 21502017
and preceding 21502019 . In scientific notation, it is written as 2.1502018 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 10751008 positive integers (up to 21502018) that are relatively prime to 21502018.
21502018 has 4 divisors, whose sum is 32253030
The reverse of 21502018 is 81020512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million five hundred two thousand eighteen
Scientific notation
2.1502018 × 10^7
Engineering notation
2.1502018 × 10^6
Prime Factorization
2 × 10751009
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21502018
Product of the distinct prime numbers
The prime factorization of 21502018 is 2 × 10751009.
Since it has a total of 2 prime factors.
3 , 8 , 80 , 48 , 168 , 345 , 3212 , 2425 , 15259 , 20885 , 541352 , 756281 , 6328993 , 9215191 , 14087263 , 15923662 , 822609133 , 697238458 , 9130275530 , 6011033769
n×2
43004036
n×3
64506054
n×4
86008072
n×5
107510090
n÷2
10751009
n÷3
7167339.3333333
n÷3
5375504.5
n÷5
4300403.6
n2
462336778072324
n3
9.9411737241731E+21
n4
2.137552963583E+29
n5
4.5961702298914E+36
2 √n
4637.0268491783
3 √n
278.07358782047
4 √n
68.095718288144
5 √n
29.274928579272
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21502017
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21502018 can be divided by 4 positive divisors.
The sum of these divisors (counting 21502018) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010000001100001000010
3
Ternary
1111110102020001
4
Quaternary
1102001201002
5
Quinary
21001031033
6
Senary
2044510214
8
Octal
122014102
10
Decimal
21502018
12
Duodecimal
724b36a
16
Hexadecimal
1481842
20
Vigesimal
6e7f0i
36
Base36
csv2a
md5
e9690cf433597265b0db19dec093dda6
sha1
10ee3498d273f65ee90dcce2eb88c44a60f60b82
sha256
9da8c239f6b91647bedd14c50332590df4c4827a026c89fa0e5c3578fc638820
sha512
1c94d680ad273b6ce5f92fbf87f8dcc44745602c716d19d8e83d6345d7fa21db3bab65340335d7393a2c3345bd53c92b419e271ec556d32da0ca4e3d386f4d62
ripemd-160
0fad08219203d5fce93942c23fba1dc1f9d82422
Diameter
43004036
Circumference
135101163.57231
Area
1.4524738254764E+15
Volume
4.1641491119896E+22
Surface area
5.8098953019056E+15
Circumference
135101163.57231
Perimeter
86008072
Area
462336778072324
Diagonal
30408445.47399
Surface area
2774020668433944
Volume
9.9411737241731E+21
Space diagonal
37242587.641261
Perimeter
64506054
Area
2.0019769745724E+14
Altitude
18621293.82063
Surface area
2.0019769745724E+14
Volume
1.1715785588861E+21
Height
10136148.49133