18398938 is an even 8-digits composite number following 18398937
and preceding 18398939 . In scientific notation, it is written as 1.8398938 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 9199468 positive integers (up to 18398938) that are relatively prime to 18398938.
18398938 has 4 divisors, whose sum is 27598410
The reverse of 18398938 is 83989381
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighteen million three hundred ninety-eight thousand nine hundred thirty-eight
Scientific notation
1.8398938 × 10^7
Engineering notation
1.8398938 × 10^6
Prime Factorization
2 × 9199469
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18398938
Product of the distinct prime numbers
The prime factorization of 18398938 is 2 × 9199469.
Since it has a total of 2 prime factors.
5 , 9 , 16 , 64 , 580 , 648 , 2886 , 7365 , 25061 , 24075 , 38735 , 97877 , 4656790 , 5119844 , 32635330 , 62733345 , 637924733 , 718424066 , 8956324524 , 1544641476
n×2
36797876
n×3
55196814
n×4
73595752
n×5
91994690
n÷2
9199469
n÷3
6132979.3333333
n÷3
4599734.5
n÷5
3679787.6
n2
338520919527844
n3
6.2284254100958E+21
n4
1.1459641295798E+29
n5
2.1084522970362E+36
2 √n
4289.3983261059
3 √n
263.99614510747
4 √n
65.493498349881
5 √n
28.376481920315
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18398937
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18398938 can be divided by 4 positive divisors.
The sum of these divisors (counting 18398938) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110001011111011011010
3
Ternary
1021121202121011
4
Quaternary
1012023323122
5
Quinary
14202231223
6
Senary
1454204134
8
Octal
106137332
10
Decimal
18398938
12
Duodecimal
61b364a
16
Hexadecimal
118beda
20
Vigesimal
5ejh6i
36
Base36
aycpm
md5
71b7891c6921d16009df59f9673fce62
sha1
01bc4140ba99df0f0675b55fa55eeb0fc4097f56
sha256
1632d55713c8a276258bd26a16fc74b847b93f2ace12f62d2b6d1ee74a30a001
sha512
b4ec9654a326b37a3dce57e226b13c5c348c303639bf94977d3879d553943acac83a3e5fb5c6ab66c01d0fbe47a4110fdcac1a324d4e103cdfbfb342877f6239
ripemd-160
7a98852b78b2f7bef199a5b5a29222a6e61a9518
Diameter
36797876
Circumference
115603936.90931
Area
1.0634948338751E+15
Volume
2.6089567349052E+22
Surface area
4.2539793355005E+15
Circumference
115603936.90931
Perimeter
73595752
Area
338520919527844
Diagonal
26020027.652862
Surface area
2031125517167064
Volume
6.2284254100958E+21
Space diagonal
31867895.42131
Perimeter
55196814
Area
1.4658385801179E+14
Altitude
15933947.710655
Surface area
1.4658385801179E+14
Volume
7.3402697393222E+20
Height
8673342.5509539