7218145 is an odd 7-digits composite number following 7218144
and preceding 7218146 . In scientific notation, it is written as 7.218145 × 10^6.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 5106240 positive integers (up to 7218145) that are relatively prime to 7218145.
7218145 has 8 divisors, whose sum is 8685504
The reverse of 7218145 is 5418127
Previous prime number is 407
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 28
Digital Root 1
Name
seven million two hundred eighteen thousand one hundred forty-five
Scientific notation
7.218145 × 10^6
Engineering notation
7.218145 × 10^6
Prime Factorization
5 × 407 × 3547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
7218145
Product of the distinct prime numbers
The prime factorization of 7218145 is 5 × 407 × 3547.
Since it has a total of 3 prime factors.
2 , 8 , 97 , 31 , 154 , 815 , 1315 , 9138 , 59476 , 68712 , 228860 , 483135 , 4456846 , 5204103 , 20956693 , 95381605 , 243926545 , 903812730 , 3109910766 , 5062955819
n×2
14436290
n×3
21654435
n×4
28872580
n×5
36090725
n÷2
3609072.5
n÷3
2406048.3333333
n÷3
1804536.25
n÷5
1443629
n2
52101617241025
n3
3.7607702798022E+20
n4
2.7145785191303E+27
n5
1.9594221364968E+34
2 √n
2686.660566577
3 √n
193.25995200304
4 √n
51.833006536154
5 √n
23.533424047424
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
-7218144
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 7218145 can be divided by 8 positive divisors.
The sum of these divisors (counting 7218145) is 1, the average is 0.125.
Base
System
Value
2
Binary
11011100010001111100001
3
Ternary
111120201102201
4
Quaternary
123202033201
5
Quinary
3321440040
6
Senary
414413201
8
Octal
33421741
10
Decimal
7218145
12
Duodecimal
2501201
16
Hexadecimal
6e23e1
20
Vigesimal
252575
36
Base36
4apk1
md5
89355f54f68e4d2bc35a8802f6b1150a
sha1
3f3ac80703ffb4792d4917eb5496025a627271f1
sha256
891bc986adc5949e131e670de62af42e15f5e15b364a361e8b4721bb950f3b71
sha512
0efff225d1b16d557e19b644de2c7e9529b42ec1290724f72f8b10e0af1b41ea68b27fe389bfa9ecb72f67fad85435a7de4f3114959cf2c0884aaa469d4fe039
ripemd-160
c0dfe302855b935a676bc93a9782ae49ef16355f
Diameter
14436290
Circumference
45352942.609092
Area
1.6368205796455E+14
Volume
1.5753077710487E+21
Surface area
6.5472823185821E+14
Circumference
45352942.609092
Perimeter
28872580
Area
52101617241025
Diagonal
10207998.554176
Surface area
312609703446150
Volume
3.7607702798022E+20
Space diagonal
12502193.876399
Perimeter
21654435
Area
22560662054490
Altitude
6251096.9381996
Surface area
22560662054490
Volume
4.4321102788883E+19
Height
3402666.1847252