20258987 is an odd 8-digits composite number following 20258986
and preceding 20258988 . In scientific notation, it is written as 2.0258987 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 17341632 positive integers (up to 20258987) that are relatively prime to 20258987.
20258987 has 8 divisors, whose sum is 23184096
The reverse of 20258987 is 78985202
Previous prime number is 1013
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million two hundred fifty-eight thousand nine hundred eighty-seven
Scientific notation
2.0258987 × 10^7
Engineering notation
2.0258987 × 10^6
Prime Factorization
7 × 1013 × 2857
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20258987
Product of the distinct prime numbers
The prime factorization of 20258987 is 7 × 1013 × 2857.
Since it has a total of 3 prime factors.
1 , 3 , 14 , 58 , 148 , 465 , 9782 , 1724 , 73211 , 42451 , 825763 , 912172 , 7063346 , 2943113 , 19627374 , 22712488 , 86421816 , 890482325 , 31945899 , 5660636863
n×2
40517974
n×3
60776961
n×4
81035948
n×5
101294935
n÷2
10129493.5
n÷3
6752995.6666667
n÷3
5064746.75
n÷5
4051797.4
n2
410426554266169
n3
8.3148262273331E+21
n4
1.684499564468E+29
n5
3.4126254778063E+36
2 √n
4500.9984447898
3 √n
272.60840509156
4 √n
67.089480880312
5 √n
28.928342130505
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20258986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20258987 can be divided by 8 positive divisors.
The sum of these divisors (counting 20258987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101010010000010101011
3
Ternary
1102010021002212
4
Quaternary
1031102002223
5
Quinary
20141241422
6
Senary
2002115335
8
Octal
115220253
10
Decimal
20258987
12
Duodecimal
694bb4b
16
Hexadecimal
13520ab
20
Vigesimal
66c797
36
Base36
c27xn
md5
e3d3dabe307a36b6a59afe5616e47a87
sha1
e3ef9536b39a87bc72c9ee337eea77bdc40fdc5a
sha256
b4656da77cf6b937de31c09ba14bf2802b3c7b458e7a66c38394f101229fb96c
sha512
847de5511fab68f8f8a93cf203c6c4bb125f3279c9d33bf297a401b77d170592a6c876fd159de0213672e004c726f631d87ed3d6e158dbcd0879e0eb80ace15e
ripemd-160
daa5338302bfe11775cdd1a1553cbfc2dd1b24c0
Diameter
40517974
Circumference
127290969.45674
Area
1.2893930477208E+15
Volume
3.4829062655554E+22
Surface area
5.1575721908831E+15
Circumference
127290969.45674
Perimeter
81035948
Area
410426554266169
Diagonal
28650534.17534
Surface area
2462559325597014
Volume
8.3148262273331E+21
Space diagonal
35089594.793877
Perimeter
60776961
Area
1.7771991119111E+14
Altitude
17544797.396939
Surface area
1.7771991119111E+14
Volume
9.7991166828917E+20
Height
9550178.0584467