18949939 is an odd 8-digits composite number following 18949938
and preceding 18949940 . In scientific notation, it is written as 1.8949939 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 18877624 positive integers (up to 18949939) that are relatively prime to 18949939.
18949939 has 4 divisors, whose sum is 19022256
The reverse of 18949939 is 93994981
Previous prime number is 263
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
eighteen million nine hundred forty-nine thousand nine hundred thirty-nine
Scientific notation
1.8949939 × 10^7
Engineering notation
1.8949939 × 10^6
Prime Factorization
263 × 72053
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18949939
Product of the distinct prime numbers
The prime factorization of 18949939 is 263 × 72053.
Since it has a total of 2 prime factors.
2 , 1 , 49 , 14 , 3 , 730 , 1593 , 2328 , 40217 , 69899 , 496972 , 734599 , 1218716 , 9132934 , 31694886 , 79043370 , 680747774 , 742709918 , 6589260122 , 2473877749
n×2
37899878
n×3
56849817
n×4
75799756
n×5
94749695
n÷2
9474969.5
n÷3
6316646.3333333
n÷3
4737484.75
n÷5
3789987.8
n2
359100188103721
n3
6.804926659454E+21
n4
1.2895294509613E+29
n5
2.443650443442E+36
2 √n
4353.1527655252
3 √n
266.60560285839
4 √n
65.978426515985
5 √n
28.544442369789
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
-18949938
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 18949939 can be divided by 4 positive divisors.
The sum of these divisors (counting 18949939) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000010010011100110011
3
Ternary
1022122202102121
4
Quaternary
1020102130303
5
Quinary
14322344224
6
Senary
1514055111
8
Octal
110223463
10
Decimal
18949939
12
Duodecimal
641a497
16
Hexadecimal
1212733
20
Vigesimal
5i8egj
36
Base36
ba5v7
md5
ecc78a4c0caf483641ba5900720056a2
sha1
322400d3fdf6b8fa340fc8c98ea89484d74a3891
sha256
eeeb3e98d766d4d0fa50bbbb7d71c67a15b0ad4ca768e61b6201f98753327129
sha512
59375697d22d50dc76f29ebf699a68297d9bfe094c8edbaa7096896fcbe96b5266e2dd020d102e8ec1ba36c1ba4b1d8297d9f8a6798072fb023242572a622cf7
ripemd-160
b88787a5de62b8d0f7f26b94de420e71e82c48d8
Diameter
37899878
Circumference
119065978.29675
Area
1.1281465128494E+15
Volume
2.8504410135411E+22
Surface area
4.5125860513975E+15
Circumference
119065978.29675
Perimeter
75799756
Area
359100188103721
Diagonal
26799260.739943
Surface area
2154601128622326
Volume
6.804926659454E+21
Space diagonal
32822257.148331
Perimeter
56849817
Area
1.554949427008E+14
Altitude
16411128.574165
Surface area
1.554949427008E+14
Volume
8.0196829772951E+20
Height
8933086.9133143