18491145 is an odd 8-digits composite number following 18491144
and preceding 18491146 . In scientific notation, it is written as 1.8491145 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 9840960 positive integers (up to 18491145) that are relatively prime to 18491145.
18491145 has 8 divisors, whose sum is 19765888
The reverse of 18491145 is 54119481
Previous prime number is 2011
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighteen million four hundred ninety-one thousand one hundred forty-five
Scientific notation
1.8491145 × 10^7
Engineering notation
1.8491145 × 10^6
Prime Factorization
15 × 2011 × 613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18491145
Product of the distinct prime numbers
The prime factorization of 18491145 is 15 × 2011 × 613.
Since it has a total of 3 prime factors.
3 , 8 , 96 , 92 , 964 , 681 , 3741 , 3220 , 84563 , 98828 , 505217 , 897694 , 2613698 , 6836558 , 60170553 , 68532381 , 931998836 , 271968319 , 4754821823 , 8174084721
n×2
36982290
n×3
55473435
n×4
73964580
n×5
92455725
n÷2
9245572.5
n÷3
6163715
n÷3
4622786.25
n÷5
3698229
n2
341922443411025
n3
6.3225374798676E+21
n4
1.1691095730817E+29
n5
2.1618174636741E+36
2 √n
4300.1331374738
3 √n
264.43641945507
4 √n
65.575400398883
5 √n
28.404867046537
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
-18491144
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 18491145 can be divided by 8 positive divisors.
The sum of these divisors (counting 18491145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110100010011100001001
3
Ternary
1021210110002020
4
Quaternary
1012202130021
5
Quinary
14213204040
6
Senary
1500155053
8
Octal
106423411
10
Decimal
18491145
12
Duodecimal
6238a89
16
Hexadecimal
11a2709
20
Vigesimal
5fb7h5
36
Base36
b0bux
md5
484910cad81088eb8501205b7dd68d53
sha1
f13de524eb905d9031040a10eb2c176386b98784
sha256
b7ebf2b1de1f47c002583b2c7c5bdba4bcb44077c95c575098f71f384ac53744
sha512
77ba6c68a5c9bfc52701ae1ff32ed8b642ad847229dccac55cf4d1248bda0800181a6a624806a941b28a2177db5a573eaeed29d99cdb2fee716b0245449402ef
ripemd-160
07af57118e3c6719cd92235d1e843a56de990755
Diameter
36982290
Circumference
116183290.57693
Area
1.0741810363175E+15
Volume
2.6483783065064E+22
Surface area
4.2967241452702E+15
Circumference
116183290.57693
Perimeter
73964580
Area
341922443411025
Diagonal
26150428.042807
Surface area
2051534660466150
Volume
6.3225374798676E+21
Space diagonal
32027602.630123
Perimeter
55473435
Area
1.48056761059E+14
Altitude
16013801.315062
Surface area
1.48056761059E+14
Volume
7.4511818772008E+20
Height
8716809.3476025