18180868 is an even 8-digits composite number following 18180867
and preceding 18180869 . In scientific notation, it is written as 1.8180868 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors.
There are 9067392 positive integers (up to 18180868) that are relatively prime to 18180868.
18180868 has 12 divisors, whose sum is 31897180
The reverse of 18180868 is 86808181
Previous prime number is 409
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighteen million one hundred eighty thousand eight hundred sixty-eight
Scientific notation
1.8180868 × 10^7
Engineering notation
1.8180868 × 10^6
Prime Factorization
2 × 2 × 409 × 11113
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9090434
Product of the distinct prime numbers
The prime factorization of 18180868 is 2 × 2 × 409 × 11113.
Since it has a total of 4 prime factors.
1 , 6 , 82 , 6 , 949 , 623 , 692 , 3727 , 71581 , 6145 , 396815 , 293508 , 9815478 , 9897433 , 93181522 , 30904212 , 53112863 , 205362373 , 4474990531 , 8923791509
n×2
36361736
n×3
54542604
n×4
72723472
n×5
90904340
n÷2
9090434
n÷3
6060289.3333333
n÷3
4545217
n÷5
3636173.6
n2
330543961233424
n3
6.009576127382E+21
n4
1.0925931030788E+29
n5
1.9864290984787E+36
2 √n
4263.9029069621
3 √n
262.9490087016
4 √n
65.298567418911
5 √n
28.30889533551
1 , 2 , 4 , 409 , 818 , 1636 , 11113 , 22226 , 44452 , 4545217 , 9090434 , 18180868
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18180867
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18180868 can be divided by 12 positive divisors.
The sum of these divisors (counting 18180868) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000101010110101100000100
3
Ternary
1021012200110111
4
Quaternary
1011112230010
5
Quinary
14123241433
6
Senary
1445402404
8
Octal
105265404
10
Decimal
18180868
12
Duodecimal
6109404
16
Hexadecimal
1156b04
20
Vigesimal
5dcc38
36
Base36
atog4
md5
fb6e02a67497888ec1e20bf7f55840f1
sha1
533bada0d67d1b2ddbde58167904c2de7c9881bc
sha256
ee2841a56a95ab715d2e500b2ecdeb8ef28030fd4196501c7872dd48b3b63363
sha512
a60493684ca87f7c6b909a50b97e8add93127ad1111f18c8fe7dad77cdf94c31617e5f5225a16a1eada7dcd4b435bb6fa025788d7472dbb57a0cfd9b27559c80
ripemd-160
36be3778f38e4ee8b08368279877238a0bcfcd30
Diameter
36361736
Circumference
114233762.68937
Area
1.0384344802994E+15
Volume
2.5172853617296E+22
Surface area
4.1537379211976E+15
Circumference
114233762.68937
Perimeter
72723472
Area
330543961233424
Diagonal
25711630.101315
Surface area
1983263767400544
Volume
6.009576127382E+21
Space diagonal
31490187.101703
Perimeter
54542604
Area
1.4312973374784E+14
Altitude
15745093.550852
Surface area
1.4312973374784E+14
Volume
7.0823533862143E+20
Height
8570543.367105