20994989 is an odd 8-digits prime number following 20994988
and preceding 20994990 . In scientific notation, it is written as 2.0994989 × 10^7.
The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors.
There are 20994988 positive integers (up to 20994989) that are relatively prime to 20994989.
20994989 has 2 divisors, whose sum is 20994990
The reverse of 20994989 is 98949902
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
twenty million nine hundred ninety-four thousand nine hundred eighty-nine
Scientific notation
2.0994989 × 10^7
Engineering notation
2.0994989 × 10^6
Prime Factorization
20994989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20994989
Product of the distinct prime numbers
The prime factorization of 20994989 is 20994989.
Since it has a total of 1 prime factors.
1 , 1 , 27 , 61 , 917 , 600 , 8636 , 6146 , 81765 , 32623 , 678569 , 308538 , 2120653 , 6282768 , 33492131 , 9543116 , 541212693 , 748302454 , 6652955378 , 4936201357
n×2
41989978
n×3
62984967
n×4
83979956
n×5
104974945
n÷2
10497494.5
n÷3
6998329.6666667
n÷3
5248747.25
n÷5
4198997.8
n2
440789563110121
n3
9.2543720288118E+21
n4
1.9429543894681E+29
n5
4.0792306034385E+36
2 √n
4582.028917412
3 √n
275.87047149712
4 √n
67.690685603058
5 √n
29.135543927504
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20994990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10497495
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4582.029026534
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999047392
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20994989 can be divided by 2 positive divisors.
The sum of these divisors (counting 20994989) is 20994990, the average is 10497495.
Base
System
Value
2
Binary
1010000000101101110101101
3
Ternary
1110111122201012
4
Quaternary
1100011232231
5
Quinary
20333314424
6
Senary
2025555005
8
Octal
120055655
10
Decimal
20994989
12
Duodecimal
7045a65
16
Hexadecimal
1405bad
20
Vigesimal
6b4799
36
Base36
chzu5
md5
40a91e0f362afcca9c1966fdb64777da
sha1
6e616455d3a18e4cde999762acc8ce251323ab74
sha256
0aa419b5bc591132b2f21892fd8f0b5546716f76af90427bbe1ebb986cca72f4
sha512
65f210d0f560b10fec90e69e316f81e67a705faef2bb1503a9792d7d30c1d07a323f8e03f5fc228b6e45b4375ff5cfb72dd1f571deb63f9698f114e433a79752
ripemd-160
4e2015c7937620aa1fc7e1de3c42597f119dd91b
Diameter
41989978
Circumference
131915406.4092
Area
1.3847812532458E+15
Volume
3.8764622905736E+22
Surface area
5.5391250129832E+15
Circumference
131915406.4092
Perimeter
83979956
Area
440789563110121
Diagonal
29691398.185674
Surface area
2644737378660726
Volume
9.2543720288118E+21
Space diagonal
36364387.65235
Perimeter
62984967
Area
1.908674796882E+14
Altitude
18182193.826175
Surface area
1.908674796882E+14
Volume
1.090638202866E+21
Height
9897132.728558