19990018 is an even 8-digits composite number following 19990017
and preceding 19990019 . In scientific notation, it is written as 1.9990018 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 9995008 positive integers (up to 19990018) that are relatively prime to 19990018.
19990018 has 4 divisors, whose sum is 29985030
The reverse of 19990018 is 81009991
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
nineteen million nine hundred ninety thousand eighteen
Scientific notation
1.9990018 × 10^7
Engineering notation
1.9990018 × 10^6
Prime Factorization
2 × 9995009
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19990018
Product of the distinct prime numbers
The prime factorization of 19990018 is 2 × 9995009.
Since it has a total of 2 prime factors.
7 , 1 , 78 , 44 , 849 , 544 , 6846 , 8895 , 5551 , 99031 , 705369 , 729812 , 5273362 , 5767527 , 22482551 , 48954496 , 430068201 , 636562068 , 528334427 , 4401761997
n×2
39980036
n×3
59970054
n×4
79960072
n×5
99950090
n÷2
9995009
n÷3
6663339.3333333
n÷3
4997504.5
n÷5
3998003.6
n2
399600819640324
n3
7.9880275774248E+21
n4
1.5968081505722E+29
n5
3.1920223672485E+36
2 √n
4471.0197941857
3 √n
271.3965952834
4 √n
66.865684728309
5 √n
28.851117336876
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
-19990017
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 19990018 can be divided by 4 positive divisors.
The sum of these divisors (counting 19990018) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010000011000000010
3
Ternary
1101121121011001
4
Quaternary
1030100120002
5
Quinary
20104140033
6
Senary
1552242214
8
Octal
114203002
10
Decimal
19990018
12
Duodecimal
684036a
16
Hexadecimal
1310602
20
Vigesimal
64if0i
36
Base36
bwgea
md5
86fd315b42eeea404439a0229e4e8534
sha1
da6fe88a4fb07a7d419348d78bba0271ee720de2
sha256
05ec5008dfd9858f0d491cade6dd00a2ad15f4d9f9491bc18a3febac0f9a43da
sha512
c393721501cfe3e26bdc8b270ea3553f1d9570d9d7ff3d98461895690c5d1e56b0869f601c11c441e00e80bc428d41fcd2b848dd78e7d28d38e2b5dc343d94ae
ripemd-160
b0f548d3605b7a90e54a309fecf8e4c0c84992bf
Diameter
39980036
Circumference
125600987.38786
Area
1.2553829993505E+15
Volume
3.3460171671881E+22
Surface area
5.021531997402E+15
Circumference
125600987.38786
Perimeter
79960072
Area
399600819640324
Diagonal
28270154.567682
Surface area
2397604917841944
Volume
7.9880275774248E+21
Space diagonal
34623726.820216
Perimeter
59970054
Area
1.730322305908E+14
Altitude
17311863.410108
Surface area
1.730322305908E+14
Volume
9.4139807805037E+20
Height
9423384.8558941