20081087 is an odd 8-digits composite number following 20081086
and preceding 20081088 . In scientific notation, it is written as 2.0081087 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors.
There are 17933760 positive integers (up to 20081087) that are relatively prime to 20081087.
20081087 has 12 divisors, whose sum is 22451904
The reverse of 20081087 is 78018002
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million eighty-one thousand eighty-seven
Scientific notation
2.0081087 × 10^7
Engineering notation
2.0081087 × 10^6
Prime Factorization
13 × 31 × 13 × 3833
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1544699
Product of the distinct prime numbers
The prime factorization of 20081087 is 13 × 31 × 13 × 3833.
Since it has a total of 4 prime factors.
8 , 7 , 85 , 20 , 238 , 601 , 7132 , 2559 , 33704 , 71159 , 678566 , 304348 , 5158948 , 1038550 , 69861221 , 44409104 , 975580564 , 287443672 , 7715446486 , 2904216919
n×2
40162174
n×3
60243261
n×4
80324348
n×5
100405435
n÷2
10040543.5
n÷3
6693695.6666667
n÷3
5020271.75
n÷5
4016217.4
n2
403250055101569
n3
8.0976994392494E+21
n4
1.6261060693942E+29
n5
3.2653977450733E+36
2 √n
4481.192586801
3 √n
271.80810697607
4 √n
66.941710366564
5 √n
28.877357108045
1 , 13 , 31 , 169 , 403 , 3833 , 5239 , 49829 , 118823 , 647777 , 1544699 , 20081087
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20081086
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20081087 can be divided by 12 positive divisors.
The sum of these divisors (counting 20081087) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100100110100110111111
3
Ternary
1101210020001222
4
Quaternary
1030212212333
5
Quinary
20120043322
6
Senary
1554223555
8
Octal
114464677
10
Decimal
20081087
12
Duodecimal
6884bbb
16
Hexadecimal
13269bf
20
Vigesimal
65a2e7
36
Base36
byenz
md5
9afa77c4eed407ac34c2b6722560eeac
sha1
f455f9fd3e0b879dc87bbc8df42cf81f069e634d
sha256
ab9174a7e1c2a125774c24b2fadee606f603b120c9a5b635e81e896393760e22
sha512
0dea38d1bdd66270562facccc32acc794ee2e087ea74a1ff7d1020335a3ccb3252ab4745b8ac2b4cdd2c5b5fc77bec3491dbb7be29106ed63ea26a205cafe5cb
ripemd-160
101fd3b331b3360e840c8ab90e8cbd213fd666e0
Diameter
40162174
Circumference
126173190.79059
Area
1.2668474106668E+15
Volume
3.3919564092432E+22
Surface area
5.0673896426671E+15
Circumference
126173190.79059
Perimeter
80324348
Area
403250055101569
Diagonal
28398945.582594
Surface area
2419500330609414
Volume
8.0976994392494E+21
Space diagonal
34781462.955211
Perimeter
60243261
Area
1.7461239589772E+14
Altitude
17390731.477605
Surface area
1.7461239589772E+14
Volume
9.5432303091729E+20
Height
9466315.194198