19984945 is an odd 8-digits composite number following 19984944
and preceding 19984946 . In scientific notation, it is written as 1.9984945 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 15047424 positive integers (up to 19984945) that are relatively prime to 19984945.
19984945 has 4 divisors, whose sum is 20220148
The reverse of 19984945 is 54948991
Previous prime number is 85
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
nineteen million nine hundred eighty-four thousand nine hundred forty-five
Scientific notation
1.9984945 × 10^7
Engineering notation
1.9984945 × 10^6
Prime Factorization
85 × 235117
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19984945
Product of the distinct prime numbers
The prime factorization of 19984945 is 85 × 235117.
Since it has a total of 2 prime factors.
10 , 2 , 25 , 82 , 840 , 915 , 345 , 169 , 6153 , 99490 , 624418 , 920799 , 1917982 , 1754858 , 67107869 , 66642305 , 919734159 , 797242074 , 6842992699 , 1540584863
n×2
39969890
n×3
59954835
n×4
79939780
n×5
99924725
n÷2
9992472.5
n÷3
6661648.3333333
n÷3
4996236.25
n÷5
3996989
n2
399398026653025
n3
7.9819475957692E+21
n4
1.5951878369433E+29
n5
3.1879741185981E+36
2 √n
4470.452437953
3 √n
271.37363530056
4 √n
66.861442086998
5 √n
28.849652840167
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
-19984944
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 19984945 can be divided by 4 positive divisors.
The sum of these divisors (counting 19984945) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100001111001000110001
3
Ternary
1101121100012011
4
Quaternary
1030033020301
5
Quinary
20104004240
6
Senary
1552202521
8
Octal
114171061
10
Decimal
19984945
12
Duodecimal
6839441
16
Hexadecimal
130f231
20
Vigesimal
64i275
36
Base36
bwchd
md5
ab02b3d33074861843bae68cf20b0403
sha1
da5c6c13b35aaaf720bff242c5d4507164d0492f
sha256
6091618bc4cb41872d78f23cabb116804d889e6a7221c802902272aabd21d2c6
sha512
ee08d1e32e50687ce244aa89346f8a6cd340af0f8cab848ee6ef9f3b619f9b28b8b7e33917c347d91c7ebe3b2ebc6dce6ad219c2a59316325295feca7d5dadc4
ripemd-160
87bded7b3733d8b6636711dc5097d2e077d3b52d
Diameter
39969890
Circumference
125569112.78879
Area
1.2547459063914E+15
Volume
3.3434703904276E+22
Surface area
5.0189836255656E+15
Circumference
125569112.78879
Perimeter
79939780
Area
399398026653025
Diagonal
28262980.26228
Surface area
2396388159918150
Volume
7.9819475957692E+21
Space diagonal
34614940.12647
Perimeter
59954835
Area
1.7294441865145E+14
Altitude
17307470.063235
Surface area
1.7294441865145E+14
Volume
9.4068154534068E+20
Height
9420993.4207601