19987078 is an even 8-digits composite number following 19987077
and preceding 19987079 . In scientific notation, it is written as 1.9987078 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 9993538 positive integers (up to 19987078) that are relatively prime to 19987078.
19987078 has 4 divisors, whose sum is 29980620
The reverse of 19987078 is 87078991
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
nineteen million nine hundred eighty-seven thousand seventy-eight
Scientific notation
1.9987078 × 10^7
Engineering notation
1.9987078 × 10^6
Prime Factorization
2 × 9993539
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19987078
Product of the distinct prime numbers
The prime factorization of 19987078 is 2 × 9993539.
Since it has a total of 2 prime factors.
9 , 8 , 77 , 13 , 295 , 885 , 2161 , 6109 , 9252 , 66618 , 78918 , 386343 , 7133605 , 3067118 , 44102925 , 16914576 , 904480391 , 829269256 , 3905128579 , 4612497524
n×2
39974156
n×3
59961234
n×4
79948312
n×5
99935390
n÷2
9993539
n÷3
6662359.3333333
n÷3
4996769.5
n÷5
3997415.6
n2
399483286978084
n3
7.9845036165273E+21
n4
1.5958689657481E+29
n5
3.1896757496187E+36
2 √n
4470.6909980449
3 √n
271.38328955734
4 √n
66.863226051731
5 √n
28.850268640537
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
-19987077
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 19987078 can be divided by 4 positive divisors.
The sum of these divisors (counting 19987078) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100001111101010000110
3
Ternary
1101121110010011
4
Quaternary
1030033222012
5
Quinary
20104041303
6
Senary
1552220434
8
Octal
114175206
10
Decimal
19987078
12
Duodecimal
683a71a
16
Hexadecimal
130fa86
20
Vigesimal
64i7di
36
Base36
bwe4m
md5
a407457d886f806ac00ad38fac0d247f
sha1
75c28aa36e007fece350a36e8dc4569b53ec4fca
sha256
c12150159a7039ffaee5e04f3f6c0b5fad72a34c88da5eff8f05e5c968fb3024
sha512
3393ac0f4c5ddaeadc223b745fe6e4af02e5730ab543c1fe89ef5542becc466efaaef304fdeabd95ab31dcb0c7160ee6330f935cf7c06fd75beb4005b9c3a487
ripemd-160
fcf8e84f4175866fba027651bc69cae74efae2b2
Diameter
39974156
Circumference
125582514.82305
Area
1.2550137596023E+15
Volume
3.3445410538991E+22
Surface area
5.020055038409E+15
Circumference
125582514.82305
Perimeter
79948312
Area
399483286978084
Diagonal
28265996.779809
Surface area
2396899721868504
Volume
7.9845036165273E+21
Space diagonal
34618634.590842
Perimeter
59961234
Area
1.7298133745516E+14
Altitude
17309317.295421
Surface area
1.7298133745516E+14
Volume
9.4098277527583E+20
Height
9421998.926603