18122018 is an even 8-digits composite number following 18122017
and preceding 18122019 . In scientific notation, it is written as 1.8122018 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 9061008 positive integers (up to 18122018) that are relatively prime to 18122018.
18122018 has 4 divisors, whose sum is 27183030
The reverse of 18122018 is 81022181
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighteen million one hundred twenty-two thousand eighteen
Scientific notation
1.8122018 × 10^7
Engineering notation
1.8122018 × 10^6
Prime Factorization
2 × 9061009
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18122018
Product of the distinct prime numbers
The prime factorization of 18122018 is 2 × 9061009.
Since it has a total of 2 prime factors.
9 , 6 , 29 , 90 , 254 , 767 , 9111 , 5949 , 61921 , 44345 , 498836 , 809036 , 7630281 , 3400961 , 84454123 , 50319309 , 969046886 , 444607088 , 7707104360 , 314173572
n×2
36244036
n×3
54366054
n×4
72488072
n×5
90610090
n÷2
9061009
n÷3
6040672.6666667
n÷3
4530504.5
n÷5
3624403.6
n2
328407536392324
n3
5.9514072858374E+21
n4
1.0785150995928E+29
n5
1.9544870048092E+36
2 √n
4256.9963589367
3 √n
262.66498713428
4 √n
65.245661610077
5 √n
28.290544839324
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
-18122017
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 18122018 can be divided by 4 positive divisors.
The sum of these divisors (counting 18122018) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101001000010100100010
3
Ternary
1021002200201212
4
Quaternary
1011020110202
5
Quinary
14114401033
6
Senary
1444230122
8
Octal
105102442
10
Decimal
18122018
12
Duodecimal
609b342
16
Hexadecimal
1148522
20
Vigesimal
5d550i
36
Base36
asf1e
md5
23dcf47307ffdcaceda6a96f2d421c3d
sha1
994296b321cae41b211668b2de01d6e51d321094
sha256
9538030a70f66b92ac70dc5368bdaa3a568efedb1293cde02a1aa58de39a3eb7
sha512
ffa2021aecebdf01606da15f46cbc674b121cef46ef705e1bdc51163923ff0b33b13e94505e5a8f9b65a1522bf3f14fa1e4d87be9cf5c6dc30a5e9c095b7f654
ripemd-160
b2d90c12f51471cd19608fd66ddf6d68ae8ba150
Diameter
36244036
Circumference
113863997.23404
Area
1.0317227037136E+15
Volume
2.492919654361E+22
Surface area
4.1268908148546E+15
Circumference
113863997.23404
Perimeter
72488072
Area
328407536392324
Diagonal
25628403.633169
Surface area
1970445218353944
Volume
5.9514072858374E+21
Space diagonal
31388255.911678
Perimeter
54366054
Area
1.4220463465501E+14
Altitude
15694127.955839
Surface area
1.4220463465501E+14
Volume
7.013800749031E+20
Height
8542801.2110565