18381889 is an odd 8-digits prime number following 18381888
and preceding 18381890 . In scientific notation, it is written as 1.8381889 × 10^7.
The sum of its digits is 46. It has a total of 1 prime factors and 2 positive divisors.
There are 18381888 positive integers (up to 18381889) that are relatively prime to 18381889.
18381889 has 2 divisors, whose sum is 18381890
The reverse of 18381889 is 98818381
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 46 Digital Root 1
Name
eighteen million three hundred eighty-one thousand eight hundred eighty-nine
Scientific notation
1.8381889 × 10^7
Engineering notation
1.8381889 × 10^6
Prime Factorization
18381889
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
18381889 Product of the distinct prime numbers
The prime factorization of 18381889 is 18381889.
Since it has a total of 1 prime factors.
2 , 5 , 53 , 83 , 753 , 472 , 1005 , 8267 , 53029 , 33333 , 508746 , 570881 , 4668218 , 8570572 , 20341425 , 64065785 , 620780852 , 539864328 , 2213136476 , 700066811
n×2
36763778
n×3
55145667
n×4
73527556
n×5
91909445
n÷2
9190944.5
n÷3
6127296.3333333
n÷3
4595472.25
n÷5
3676377.8
n2
337893843208321
n3
6.2111271196388E+21
n4
1.1417224927809E+29
n5
2.0987016131102E+36
2 √n4287.4105238477
3 √n263.91457769658
4 √n65.478321021905
5 √n28.371221072565
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
18381890 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
9190945 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4287.4106404682 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999998911973 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18381889 can be divided by 2 positive divisors.
The sum of these divisors (counting 18381889) is 18381890, the average is 9190945.
Base
System
Value
2
Binary
1000110000111110001000001
3
Ternary
1021120220012201
4
Quaternary
1012013301001
5
Quinary
14201210024
6
Senary
1453553201
8
Octal
106076101
10
Decimal
18381889
12
Duodecimal
61a5801
16
Hexadecimal
1187c41
20
Vigesimal
5ehee9
36
Base36
axzk1
md5
33f775dd63df9cc1106fc970266db13e
sha1
65559645480afd534a2448942fd38b118ea950d4
sha256
344ba94142122f3637c4e84733f189d260e7c42267f0deb4d539f8e531e272d5
sha512
30379a84106dd9a0f8498ce2e48b52b92c3bb563700110c988d4b74678f645e56606d4d317b111d76ae564546d906b9af0759756d167e93ab13e4f7715310f6c
ripemd-160
3f44f88e4cd4507f4d709b71d90edf3ee8a7dd68
Diameter
36763778
Circumference
115496814.88301
Area
1.0615248155165E+15
Volume
2.6017108439426E+22
Surface area
4.2460992620659E+15
Circumference
115496814.88301
Perimeter
73527556
Area
337893843208321
Diagonal
25995916.725837
Surface area
2027363059249926
Volume
6.2111271196388E+21
Space diagonal
31838365.687091
Perimeter
55145667
Area
1.4631232600038E+14
Altitude
15919182.843546
Surface area
1.4631232600038E+14
Volume
7.3198835085137E+20
Height
8665305.5752789