19990646 is an even 8-digits composite number following 19990645
and preceding 19990647 . In scientific notation, it is written as 1.9990646 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors.
There are 8895744 positive integers (up to 19990646) that are relatively prime to 19990646.
19990646 has 16 divisors, whose sum is 30765744
The reverse of 19990646 is 64609991
Previous prime number is 163
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
nineteen million nine hundred ninety thousand six hundred forty-six
Scientific notation
1.9990646 × 10^7
Engineering notation
1.9990646 × 10^6
Prime Factorization
2 × 1157 × 163 × 53
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19990646
Product of the distinct prime numbers
The prime factorization of 19990646 is 2 × 1157 × 163 × 53.
Since it has a total of 4 prime factors.
6 , 9 , 81 , 23 , 115 , 353 , 9230 , 7460 , 26706 , 78607 , 553591 , 562952 , 8304133 , 785195 , 3104679 , 52982884 , 452627826 , 30670621 , 7055476637 , 9071199455
n×2
39981292
n×3
59971938
n×4
79962584
n×5
99953230
n÷2
9995323
n÷3
6663548.6666667
n÷3
4997661.5
n÷5
3998129.2
n2
399625927497316
n3
7.9887804490205E+21
n4
1.5970088192809E+29
n5
3.1925237965122E+36
2 √n
4471.0900236967
3 √n
271.39943728979
4 √n
66.866209879854
5 √n
28.851298610089
1 , 2 , 53 , 106 , 163 , 326 , 1157 , 2314 , 8639 , 17278 , 61321 , 122642 , 188591 , 377182 , 9995323 , 19990646
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
-19990645
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 19990646 can be divided by 16 positive divisors.
The sum of these divisors (counting 19990646) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010000100001110110
3
Ternary
1101121122000022
4
Quaternary
1030100201312
5
Quinary
20104200041
6
Senary
1552245142
8
Octal
114204166
10
Decimal
19990646
12
Duodecimal
68407b2
16
Hexadecimal
1310876
20
Vigesimal
64igc6
36
Base36
bwgvq
md5
b9627c67bed69e9c705246a3876062df
sha1
e4715abeb7859a4ec702ca2a2913a452f83a80c8
sha256
1d51d77f8446bf9d3879250d2e8512d711076cf526b94a683d7f35782a806e05
sha512
08ae2f32a4d2b7f4d6b9d595ae2378f0cf8bebea1bf59a28dbbb5913b4fb895357a0507b9394c6a815268e17b85d3c8f687e62ad890f6ffdf6059cfd9498580d
ripemd-160
7bec9ab8673408e50c16ca3b998b3a866dec6c9f
Diameter
39981292
Circumference
125604933.22823
Area
1.2554618780096E+15
Volume
3.3463325293046E+22
Surface area
5.0218475120383E+15
Circumference
125604933.22823
Perimeter
79962584
Area
399625927497316
Diagonal
28271042.693799
Surface area
2397755564983896
Volume
7.9887804490205E+21
Space diagonal
34624814.548124
Perimeter
59971938
Area
1.730431026118E+14
Altitude
17312407.274062
Surface area
1.730431026118E+14
Volume
9.4148680481882E+20
Height
9423680.8979332