18378971 is an odd 8-digits composite number following 18378970
and preceding 18378972 . In scientific notation, it is written as 1.8378971 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 16711200 positive integers (up to 18378971) that are relatively prime to 18378971.
18378971 has 8 divisors, whose sum is 20089104
The reverse of 18378971 is 17987381
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighteen million three hundred seventy-eight thousand nine hundred seventy-one
Scientific notation
1.8378971 × 10^7
Engineering notation
1.8378971 × 10^6
Prime Factorization
13 × 67 × 21101
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18378971
Product of the distinct prime numbers
The prime factorization of 18378971 is 13 × 67 × 21101.
Since it has a total of 3 prime factors.
9 , 4 , 7 , 4 , 762 , 977 , 6315 , 4121 , 32279 , 89671 , 79543 , 857257 , 4815390 , 3954726 , 77052757 , 17782605 , 914562270 , 103523166 , 4642130081 , 4552938645
n×2
36757942
n×3
55136913
n×4
73515884
n×5
91894855
n÷2
9189485.5
n÷3
6126323.6666667
n÷3
4594742.75
n÷5
3675794.2
n2
337786575018841
n3
6.2081696664606E+21
n4
1.1409977026296E+29
n5
2.0970363687696E+36
2 √n
4287.0702116947
3 √n
263.90061207548
4 √n
65.475722307545
5 √n
28.370320267644
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
-18378970
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 18378971 can be divided by 8 positive divisors.
The sum of these divisors (counting 18378971) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110000111000011011011
3
Ternary
1021120202012122
4
Quaternary
1012013003123
5
Quinary
14201111341
6
Senary
1453531455
8
Octal
106070333
10
Decimal
18378971
12
Duodecimal
61a3b8b
16
Hexadecimal
11870db
20
Vigesimal
5eh78b
36
Base36
axxaz
md5
07f21063ea2fd20252ebe43111f0e72e
sha1
cb67e687f9faba866c3dea3d906db01862131b00
sha256
623c24f4caf961fe2bc9fe245df2fadc5585da24f8666e089d87dedb67d810e2
sha512
668121ac4992857647670dbd61ff5526c21d89662895e1d1ceda0d4482d8edd1ad7fe1e439eb4dbc07c385165118d86ee203b3e7387d88900821641f2fc9c12a
ripemd-160
7c0fad89b2ada791094186189fa55ebd002ea84b
Diameter
36757942
Circumference
115478480.54828
Area
1.0611878225604E+15
Volume
2.6004720288522E+22
Surface area
4.2447512902418E+15
Circumference
115478480.54828
Perimeter
73515884
Area
337786575018841
Diagonal
25991790.050662
Surface area
2026719450113046
Volume
6.2081696664606E+21
Space diagonal
31833311.562835
Perimeter
55136913
Area
1.4626587751183E+14
Altitude
15916655.781417
Surface area
1.4626587751183E+14
Volume
7.3163981165182E+20
Height
8663930.0168873