18993909 is an odd 8-digits composite number following 18993908
and preceding 18993910 . In scientific notation, it is written as 1.8993909 × 10^7.
The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors.
There are 11511440 positive integers (up to 18993909) that are relatively prime to 18993909.
18993909 has 4 divisors, whose sum is 19569516
The reverse of 18993909 is 90939981
Previous prime number is 33
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighteen million nine hundred ninety-three thousand nine hundred nine
Scientific notation
1.8993909 × 10^7
Engineering notation
1.8993909 × 10^6
Prime Factorization
33 × 575573
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18993909
Product of the distinct prime numbers
The prime factorization of 18993909 is 33 × 575573.
Since it has a total of 2 prime factors.
7 , 4 , 85 , 79 , 522 , 411 , 6551 , 653 , 82160 , 49677 , 366124 , 560409 , 9452043 , 1373024 , 96056298 , 39638079 , 479055298 , 362732033 , 3067819696 , 3046105168
n×2
37987818
n×3
56981727
n×4
75975636
n×5
94969545
n÷2
9496954.5
n÷3
6331303
n÷3
4748477.25
n÷5
3798781.8
n2
360768579100281
n3
6.85240556149E+21
n4
1.3015396766604E+29
n5
2.4721326178376E+36
2 √n
4358.2002019182
3 √n
266.81164737822
4 √n
66.016666092118
5 √n
28.557676563898
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
-18993908
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 18993909 can be divided by 4 positive divisors.
The sum of these divisors (counting 18993909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000011101001011110101
3
Ternary
1022201222202010
4
Quaternary
1020131023311
5
Quinary
14330301114
6
Senary
1515034433
8
Octal
110351365
10
Decimal
18993909
12
Duodecimal
643ba19
16
Hexadecimal
121d2f5
20
Vigesimal
5ie4f9
36
Base36
bb3sl
md5
b2787f9957ec9b3b4e96ed4093a54606
sha1
97054a997db0fc2d6da16b7af0cf534afac39183
sha256
6a217121fcfa260718b3f287c4b96f28eb5eb5d2e4376a94075f985ad692fd2c
sha512
5880621cb3d3e5c3c6aaef0b16d60ebc6611aedfdadbab878a3934000adbb7b15a5387afcf1ce2cd2eec7fffbbc8d10cd73cf61771216fa4e14e37726e1f9871
ripemd-160
36c520b6b35a52de131fa358ff82c1841fa14db4
Diameter
37987818
Circumference
119342249.95471
Area
1.1333879177475E+15
Volume
2.8703289295193E+22
Surface area
4.5335516709899E+15
Circumference
119342249.95471
Perimeter
75975636
Area
360768579100281
Diagonal
26861443.71028
Surface area
2164611474601686
Volume
6.85240556149E+21
Space diagonal
32898415.42234
Perimeter
56981727
Area
1.5621737719403E+14
Altitude
16449207.71117
Surface area
1.5621737719403E+14
Volume
8.07563739995E+20
Height
8953814.5700935