18213215 is an odd 8-digits composite number following 18213214
and preceding 18213216 . In scientific notation, it is written as 1.8213215 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 14570568 positive integers (up to 18213215) that are relatively prime to 18213215.
18213215 has 4 divisors, whose sum is 21855864
The reverse of 18213215 is 51231281
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighteen million two hundred thirteen thousand two hundred fifteen
Scientific notation
1.8213215 × 10^7
Engineering notation
1.8213215 × 10^6
Prime Factorization
5 × 3642643
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18213215
Product of the distinct prime numbers
The prime factorization of 18213215 is 5 × 3642643.
Since it has a total of 2 prime factors.
1 , 10 , 71 , 5 , 450 , 16 , 5633 , 1006 , 66982 , 76027 , 607420 , 8154 , 5227386 , 7381831 , 37982145 , 26709038 , 366232151 , 244278429 , 7956448791 , 2787902506
n×2
36426430
n×3
54639645
n×4
72852860
n×5
91066075
n÷2
9106607.5
n÷3
6071071.6666667
n÷3
4553303.75
n÷5
3642643
n2
331721200636225
n3
6.0417095472457E+21
n4
1.1003895495154E+29
n5
2.0041631449077E+36
2 √n
4267.6943423821
3 √n
263.10486067069
4 √n
65.327592504103
5 √n
28.31896148691
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
-18213214
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 18213215 can be divided by 4 positive divisors.
The sum of these divisors (counting 18213215) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101011110100101011111
3
Ternary
1021021022211112
4
Quaternary
1011132211133
5
Quinary
14130310330
6
Senary
1450212235
8
Octal
105364537
10
Decimal
18213215
12
Duodecimal
612407b
16
Hexadecimal
115e95f
20
Vigesimal
5dgd0f
36
Base36
auden
md5
4bdbc2f2f3578ec8c1efad3063f65c6a
sha1
302261691230eb2b8ff19750d8301ad36b1eded1
sha256
b58b96030c57ac58cb9ca0ba5835864c3cfe4611983494e01a6e12036581a6a2
sha512
dc27599f2cd4640c88f7f820704de3d419a274e12e95403d6329228451ba6e22d21257b4c572faed1b9d720c08488d0bc8d19d914a37df8b71e335138c979e96
ripemd-160
f229dbb8e27f09c1a94b550058c7c104bd1bb97d
Diameter
36426430
Circumference
114437004.8845
Area
1.0421328869588E+15
Volume
2.5307453771667E+22
Surface area
4.168531547835E+15
Circumference
114437004.8845
Perimeter
72852860
Area
331721200636225
Diagonal
25757375.667417
Surface area
1990327203817350
Volume
6.0417095472457E+21
Space diagonal
31546213.749176
Perimeter
54639645
Area
1.4363949336242E+14
Altitude
15773106.874588
Surface area
1.4363949336242E+14
Volume
7.1202229846949E+20
Height
8585791.889139