18381207 is an odd 8-digits composite number following 18381206
and preceding 18381208 . In scientific notation, it is written as 1.8381207 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 11311488 positive integers (up to 18381207) that are relatively prime to 18381207.
18381207 has 4 divisors, whose sum is 18852560
The reverse of 18381207 is 70218381
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighteen million three hundred eighty-one thousand two hundred seven
Scientific notation
1.8381207 × 10^7
Engineering notation
1.8381207 × 10^6
Prime Factorization
39 × 471313
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18381207
Product of the distinct prime numbers
The prime factorization of 18381207 is 39 × 471313.
Since it has a total of 2 prime factors.
10 , 3 , 58 , 61 , 551 , 986 , 7567 , 7072 , 38776 , 41219 , 323859 , 648883 , 8086964 , 9730016 , 25140260 , 69274928 , 256090495 , 80394523 , 1044931872 , 7568752149
n×2
36762414
n×3
55143621
n×4
73524828
n×5
91906035
n÷2
9190603.5
n÷3
6127069
n÷3
4595301.75
n÷5
3676241.4
n2
337868770776849
n3
6.2104358144848E+21
n4
1.1415530626626E+29
n5
2.0983123146285E+36
2 √n
4287.3309879224
3 √n
263.91131375985
4 √n
65.477713673604
5 √n
28.371010545128
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
-18381206
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 18381207 can be divided by 4 positive divisors.
The sum of these divisors (counting 18381207) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110000111100110010111
3
Ternary
1021120212021110
4
Quaternary
1012013212113
5
Quinary
14201144312
6
Senary
1453550103
8
Octal
106074627
10
Decimal
18381207
12
Duodecimal
61a5333
16
Hexadecimal
1187997
20
Vigesimal
5ehd07
36
Base36
axz13
md5
cd991a72bd3ad4b7ec49fbb0644e84ec
sha1
01af5aa6e2283dba9b94c0fef6a306f17aeae770
sha256
2d30eda2dba519493026f85c12cd951fe516f3d9bbc45cd1eae12b22afd85b34
sha512
e9c89c37266d5a3dfb7351c42a8bfe19ec991c719217b1a6371b1db947446dbca01dec124f43237765cdafc2acabc69b8abb43dd0431b0863f5a04cd3fd52b20
ripemd-160
df1ba98a403bfbdb82578d42146d9cfa8332346a
Diameter
36762414
Circumference
115492529.75063
Area
1.06144604815E+15
Volume
2.6014212707169E+22
Surface area
4.2457841925999E+15
Circumference
115492529.75063
Perimeter
73524828
Area
337868770776849
Diagonal
25994952.232187
Surface area
2027212624661094
Volume
6.2104358144848E+21
Space diagonal
31837184.428441
Perimeter
55143621
Area
1.4630146931909E+14
Altitude
15918592.21422
Surface area
1.4630146931909E+14
Volume
7.3190687975767E+20
Height
8664984.0773958