18449939 is an odd 8-digits composite number following 18449938
and preceding 18449940 . In scientific notation, it is written as 1.8449939 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 17951256 positive integers (up to 18449939) that are relatively prime to 18449939.
18449939 has 4 divisors, whose sum is 18948624
The reverse of 18449939 is 93994481
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighteen million four hundred forty-nine thousand nine hundred thirty-nine
Scientific notation
1.8449939 × 10^7
Engineering notation
1.8449939 × 10^6
Prime Factorization
37 × 498647
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18449939
Product of the distinct prime numbers
The prime factorization of 18449939 is 37 × 498647.
Since it has a total of 2 prime factors.
4 , 6 , 38 , 1 , 441 , 241 , 4649 , 6998 , 50397 , 12416 , 313924 , 895764 , 380940 , 2053254 , 26999420 , 1254032 , 680735431 , 662285964 , 8513052263 , 8360653844
n×2
36899878
n×3
55349817
n×4
73799756
n×5
92249695
n÷2
9224969.5
n÷3
6149979.6666667
n÷3
4612484.75
n÷5
3689987.8
n2
340400249103721
n3
6.2803638315485E+21
n4
1.1587232958988E+29
n5
2.1378374127211E+36
2 √n
4295.339218269
3 √n
264.23984841125
4 √n
65.538837480299
5 √n
28.392196163795
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
-18449938
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 18449939 can be divided by 4 positive divisors.
The sum of these divisors (counting 18449939) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110011000011000010011
3
Ternary
1021201100120002
4
Quaternary
1012120120103
5
Quinary
14210344224
6
Senary
1455240215
8
Octal
106303023
10
Decimal
18449939
12
Duodecimal
621906b
16
Hexadecimal
1198613
20
Vigesimal
5f64gj
36
Base36
azg2b
md5
2eb73b0534c5e53697797d1b28937033
sha1
a4a93bb9aa8997c7aeb8eccd308d76b250337bfe
sha256
4a7fcc913fa5d2cbdb8da94a4f9f4465162b6da79691fdab5fe906b770bed575
sha512
dd70e697cf927a4b7134aff606ba81da3bc73b222eda8d3092918b4fe73ae4f6c40fa73c536f2724a3d24fb9da2b38c8ab83a1ec29c9fcf7352052696cf9bddf
ripemd-160
7eb2d125f485c2f2df4a8ba6ba079c294e549571
Diameter
36899878
Circumference
115924385.64316
Area
1.0693989218644E+15
Volume
2.6307126500085E+22
Surface area
4.2775956874575E+15
Circumference
115924385.64316
Perimeter
73799756
Area
340400249103721
Diagonal
26092153.958756
Surface area
2042401494622326
Volume
6.2803638315485E+21
Space diagonal
31956231.744547
Perimeter
55349817
Area
1.4739763158919E+14
Altitude
15978115.872273
Surface area
1.4739763158919E+14
Volume
7.4014797560111E+20
Height
8697384.6529188