18381331 is an odd 8-digits composite number following 18381330
and preceding 18381332 . In scientific notation, it is written as 1.8381331 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 17643360 positive integers (up to 18381331) that are relatively prime to 18381331.
18381331 has 8 divisors, whose sum is 19126800
The reverse of 18381331 is 13318381
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighteen million three hundred eighty-one thousand three hundred thirty-one
Scientific notation
1.8381331 × 10^7
Engineering notation
1.8381331 × 10^6
Prime Factorization
179 × 29 × 3541
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18381331
Product of the distinct prime numbers
The prime factorization of 18381331 is 179 × 29 × 3541.
Since it has a total of 3 prime factors.
9 , 8 , 21 , 43 , 154 , 982 , 1513 , 2553 , 77583 , 35443 , 275717 , 296320 , 7672299 , 2590034 , 87439933 , 57773392 , 344276125 , 778725557 , 1737876920 , 2312115446
n×2
36762662
n×3
55143993
n×4
73525324
n×5
91906655
n÷2
9190665.5
n÷3
6127110.3333333
n÷3
4595332.75
n÷5
3676266.2
n2
337873329331561
n3
6.2105615025154E+21
n4
1.1415838667359E+29
n5
2.0983830918733E+36
2 √n
4287.3454491095
3 √n
263.9119072089
4 √n
65.477824101825
5 √n
28.371048823308
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
-18381330
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 18381331 can be divided by 8 positive divisors.
The sum of these divisors (counting 18381331) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110000111101000010011
3
Ternary
1021120212110001
4
Quaternary
1012013220103
5
Quinary
14201200311
6
Senary
1453550431
8
Octal
106075023
10
Decimal
18381331
12
Duodecimal
61a5417
16
Hexadecimal
1187a13
20
Vigesimal
5ehd6b
36
Base36
axz4j
md5
0d7fd8df786f4724dc84b7209adc357d
sha1
0aee395d1f0903aa8fda9a843f6289eccd6180ec
sha256
81df8458b1ffea8fefaa2c83045530d957cb681ec2ab4cc258f4ec7907f2acd9
sha512
6332bd7e2f155ea59db2ae606ce472e7b9ff06262f6879aab202781ff4221caca341bc995306ab016b0e86c7325387aa758c347f947d4ed68546ade77a7b97c6
ripemd-160
d6ec0c747e8882c2d7b73b869bf9263794110282
Diameter
36762662
Circumference
115493308.8656
Area
1.061460369272E+15
Volume
2.601473918796E+22
Surface area
4.2458414770878E+15
Circumference
115493308.8656
Perimeter
73525324
Area
337873329331561
Diagonal
25995127.594669
Surface area
2027239975989366
Volume
6.2105615025154E+21
Space diagonal
31837399.202741
Perimeter
55143993
Area
1.4630344323118E+14
Altitude
15918699.60137
Surface area
1.4630344323118E+14
Volume
7.3192169223413E+20
Height
8665042.5315563