20874987 is an odd 8-digits composite number following 20874986
and preceding 20874988 . In scientific notation, it is written as 2.0874987 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 11928528 positive integers (up to 20874987) that are relatively prime to 20874987.
20874987 has 4 divisors, whose sum is 21206400
The reverse of 20874987 is 78947802
Previous prime number is 63
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million eight hundred seventy-four thousand nine hundred eighty-seven
Scientific notation
2.0874987 × 10^7
Engineering notation
2.0874987 × 10^6
Prime Factorization
63 × 331349
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20874987
Product of the distinct prime numbers
The prime factorization of 20874987 is 63 × 331349.
Since it has a total of 2 prime factors.
7 , 6 , 57 , 8 , 788 , 733 , 3834 , 1172 , 86718 , 32995 , 826887 , 364703 , 9046755 , 4580213 , 7039501 , 63929167 , 677474272 , 736477797 , 4374526942 , 4131793573
n×2
41749974
n×3
62624961
n×4
83499948
n×5
104374935
n÷2
10437493.5
n÷3
6958329
n÷3
5218746.75
n÷5
4174997.4
n2
435765082250169
n3
9.0965904270262E+21
n4
1.898912069085E+29
n5
3.9639764756292E+36
2 √n
4568.9152979673
3 √n
275.34386516213
4 √n
67.593751915154
5 √n
29.102161250299
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
-20874986
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 20874987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20874987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111101000011011101011
3
Ternary
1110021120002200
4
Quaternary
1033220123223
5
Quinary
20320444422
6
Senary
2023231243
8
Octal
117503353
10
Decimal
20874987
12
Duodecimal
6ba8523
16
Hexadecimal
13e86eb
20
Vigesimal
6a9797
36
Base36
cff8r
md5
ed230d3d93336c39c143b7c151b02758
sha1
fc655fca06bca11df2d0698ac4ac3cc80ff2e033
sha256
b37525df1a5ba7477be06ffe4e3d7c4b8b0e680d6813d34df73184ab68e66e46
sha512
201b11edff54529e136d72effaf4915a70cfd2f47eabbba7667f3f1a9377e876e6ecd26c21ab0359432cbfeb36567b125d227a38a11f15728252666dcd17053f
ripemd-160
ef4988e5ea5d65fe99c65ce42b3a328bb7e365a5
Diameter
41749974
Circumference
131161411.60596
Area
1.3689963810881E+15
Volume
3.8103708877681E+22
Surface area
5.4759855243523E+15
Circumference
131161411.60596
Perimeter
83499948
Area
435765082250169
Diagonal
29521689.729762
Surface area
2614590493501014
Volume
9.0965904270262E+21
Space diagonal
36156538.09134
Perimeter
62624961
Area
1.8869181565543E+14
Altitude
18078269.04567
Surface area
1.8869181565543E+14
Volume
1.0720434627711E+21
Height
9840563.243254