19990685 is an odd 8-digits composite number following 19990684
and preceding 19990686 . In scientific notation, it is written as 1.9990685 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 13201920 positive integers (up to 19990685) that are relatively prime to 19990685.
19990685 has 16 divisors, whose sum is 22505472
The reverse of 19990685 is 58609991
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
nineteen million nine hundred ninety thousand six hundred eighty-five
Scientific notation
1.9990685 × 10^7
Engineering notation
1.9990685 × 10^6
Prime Factorization
65 × 11 × 73 × 383
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19990685
Product of the distinct prime numbers
The prime factorization of 19990685 is 65 × 11 × 73 × 383.
Since it has a total of 4 prime factors.
10 , 7 , 73 , 19 , 498 , 838 , 3197 , 5084 , 68901 , 41557 , 246150 , 691203 , 9600232 , 3463079 , 59752962 , 72793755 , 341775544 , 15829163 , 9630410111 , 7595646670
n×2
39981370
n×3
59972055
n×4
79962740
n×5
99953425
n÷2
9995342.5
n÷3
6663561.6666667
n÷3
4997671.25
n÷5
3998137
n2
399627486769225
n3
7.9888272053452E+21
n4
1.5970212818149E+29
n5
3.1925549383057E+36
2 √n
4471.0943850471
3 √n
271.39961378186
4 √n
66.86624249236
5 √n
28.851309867352
1 , 11 , 65 , 73 , 383 , 715 , 803 , 4213 , 4745 , 24895 , 27959 , 52195 , 273845 , 307549 , 1817335 , 19990685
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19990684
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19990685 can be divided by 16 positive divisors.
The sum of these divisors (counting 19990685) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010000100010011101
3
Ternary
1101121122001202
4
Quaternary
1030100202131
5
Quinary
20104200220
6
Senary
1552245245
8
Octal
114204235
10
Decimal
19990685
12
Duodecimal
6840825
16
Hexadecimal
131089d
20
Vigesimal
64ige5
36
Base36
bwgwt
md5
678b578473b03aadb5c108ec97467a1d
sha1
237864485aec9af75ceffa5888d9d28253d7c70e
sha256
bf59ea565b50243a114420bb95ada1a7474cb5fe4a7f0b2d0bf43c419c8247fa
sha512
b5d62c6fb79f28c3debffd244ef59419aae24cc4787dbe7a86536978785d24f6651cd6ce0ce7714b4d0afac1bb3857515ecef78594141531cc6725de8c1ddabb
ripemd-160
16b88d279f2d01cca0542f1e7b5235e108b42b2b
Diameter
39981370
Circumference
125605178.27246
Area
1.2554667766067E+15
Volume
3.3463521145481E+22
Surface area
5.021867106427E+15
Circumference
125605178.27246
Perimeter
79962740
Area
399627486769225
Diagonal
28271097.848128
Surface area
2397764920615350
Volume
7.9888272053452E+21
Space diagonal
34624882.098105
Perimeter
59972055
Area
1.7304377779634E+14
Altitude
17312441.049053
Surface area
1.7304377779634E+14
Volume
9.4149231510453E+20
Height
9423699.2827095