20080981 is an odd 8-digits composite number following 20080980
and preceding 20080982 . In scientific notation, it is written as 2.0080981 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 19855264 positive integers (up to 20080981) that are relatively prime to 20080981.
20080981 has 4 divisors, whose sum is 20306700
The reverse of 20080981 is 18908002
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eighty thousand nine hundred eighty-one
Scientific notation
2.0080981 × 10^7
Engineering notation
2.0080981 × 10^6
Prime Factorization
89 × 225629
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20080981
Product of the distinct prime numbers
The prime factorization of 20080981 is 89 × 225629.
Since it has a total of 2 prime factors.
9 , 5 , 49 , 47 , 123 , 268 , 8012 , 743 , 20614 , 17741 , 447438 , 146970 , 7442694 , 4255671 , 70620691 , 45081659 , 412164933 , 148615259 , 8067395840 , 3597580841
n×2
40161962
n×3
60242943
n×4
80323924
n×5
100404905
n÷2
10040490.5
n÷3
6693660.3333333
n÷3
5020245.25
n÷5
4016196.2
n2
403245797922361
n3
8.0975712064088E+21
n4
1.6260717354204E+29
n5
3.2653115623614E+36
2 √n
4481.1807595767
3 √n
271.80762871992
4 √n
66.941622026783
5 √n
28.877326621585
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
-20080980
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 20080981 can be divided by 4 positive divisors.
The sum of these divisors (counting 20080981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100100110100101010101
3
Ternary
1101210012221001
4
Quaternary
1030212211111
5
Quinary
20120042411
6
Senary
1554223301
8
Octal
114464525
10
Decimal
20080981
12
Duodecimal
6884b31
16
Hexadecimal
1326955
20
Vigesimal
65a291
36
Base36
byel1
md5
587390ac268aadc9aa86825decb5893b
sha1
61fe3c7ba00634e61c112d682c5c01e03cc3ecc3
sha256
e4403c37b65f44428dd993219228df31c2105a5b582f43a77599d72025d498d4
sha512
29bab3c9ae1368daf262fb63ff52729e18cebdc081829ee60bbe9549c61caa2222ded0f24b8233714e064cd804ca077553e2e42eba31e87ebb9d9174117e6724
ripemd-160
7cf12126401961843ca1acbae9e8b2663f5e7172
Diameter
40161962
Circumference
126172524.77295
Area
1.2668340363438E+15
Volume
3.3919026951965E+22
Surface area
5.0673361453754E+15
Circumference
126172524.77295
Perimeter
80323924
Area
403245797922361
Diagonal
28398795.675956
Surface area
2419474787534166
Volume
8.0975712064088E+21
Space diagonal
34781279.357825
Perimeter
60242943
Area
1.7461055248505E+14
Altitude
17390639.678913
Surface area
1.7461055248505E+14
Volume
9.543079185321E+20
Height
9466265.2253188