18532981 is an odd 8-digits prime number following 18532980
and preceding 18532982 . In scientific notation, it is written as 1.8532981 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 18532980 positive integers (up to 18532981) that are relatively prime to 18532981.
18532981 has 2 divisors, whose sum is 18532982
The reverse of 18532981 is 18923581
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighteen million five hundred thirty-two thousand nine hundred eighty-one
Scientific notation
1.8532981 × 10^7
Engineering notation
1.8532981 × 10^6
Prime Factorization
18532981
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18532981
Product of the distinct prime numbers
The prime factorization of 18532981 is 18532981.
Since it has a total of 1 prime factors.
5 , 9 , 99 , 19 , 361 , 576 , 8624 , 3612 , 39898 , 2895 , 821017 , 294877 , 6155748 , 719987 , 21299198 , 1923716 , 790393081 , 85574850 , 4656879146 , 3712270559
n×2
37065962
n×3
55598943
n×4
74131924
n×5
92664905
n÷2
9266490.5
n÷3
6177660.3333333
n÷3
4633245.25
n÷5
3706596.2
n2
343471384746361
n3
6.365548647548E+21
n4
1.1797259213958E+29
n5
2.1863838086436E+36
2 √n
4304.9948896601
3 √n
264.63569734802
4 √n
65.612459865944
5 √n
28.417708566386
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18532982
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9266491
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4304.9950058043
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998920843
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18532981 can be divided by 2 positive divisors.
The sum of these divisors (counting 18532981) is 18532982, the average is 9266491.
Base
System
Value
2
Binary
1000110101100101001110101
3
Ternary
1021212120110201
4
Quaternary
1012230221311
5
Quinary
14221023411
6
Senary
1501120501
8
Octal
106545165
10
Decimal
18532981
12
Duodecimal
6259131
16
Hexadecimal
11aca75
20
Vigesimal
5fgc91
36
Base36
b1851
md5
b54f8eca6ac0651b21b2af9a8f707fbf
sha1
5ae9bef817d997da847cdab8815a6f80a1e1c659
sha256
19512dd5f04cee97e8d76152ae593fd89a0090318832a4dc3262079c33cae630
sha512
6057602f3cec9090bf2b63f95bbadb4dc3cddb89f2a3da6bcbc91283be5415ea586c6dc8b71f03ffc8d5073c45278e482ccfbfc5da758f286693a6eab15e917a
ripemd-160
412614c6824d63dba7af0c382f8a206fbe9b3c6b
Diameter
37065962
Circumference
116446153.91744
Area
1.0790471790375E+15
Volume
2.666394782294E+22
Surface area
4.3161887161499E+15
Circumference
116446153.91744
Perimeter
74131924
Area
343471384746361
Diagonal
26209593.081403
Surface area
2060828308478166
Volume
6.365548647548E+21
Space diagonal
32100064.707709
Perimeter
55598943
Area
1.4872747233168E+14
Altitude
16050032.353854
Surface area
1.4872747233168E+14
Volume
7.5018710244234E+20
Height
8736531.0271343