20218989 is an odd 8-digits composite number following 20218988
and preceding 20218990 . In scientific notation, it is written as 2.0218989 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 11515392 positive integers (up to 20218989) that are relatively prime to 20218989.
20218989 has 8 divisors, whose sum is 21252088
The reverse of 20218989 is 98981202
Previous prime number is 337
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million two hundred eighteen thousand nine hundred eighty-nine
Scientific notation
2.0218989 × 10^7
Engineering notation
2.0218989 × 10^6
Prime Factorization
21 × 337 × 2857
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20218989
Product of the distinct prime numbers
The prime factorization of 20218989 is 21 × 337 × 2857.
Since it has a total of 3 prime factors.
3 , 1 , 27 , 40 , 764 , 138 , 6555 , 6611 , 60628 , 82048 , 822328 , 839812 , 3205165 , 9413551 , 72354917 , 78505086 , 948784043 , 20519678 , 3878496498 , 5710381605
n×2
40437978
n×3
60656967
n×4
80875956
n×5
101094945
n÷2
10109494.5
n÷3
6739663
n÷3
5054747.25
n÷5
4043797.8
n2
408807516182121
n3
8.2656746728036E+21
n4
1.67123585287E+29
n5
3.3790699325583E+36
2 √n
4496.5530131424
3 √n
272.42888024208
4 √n
67.056342079943
5 √n
28.916910258872
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
-20218988
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 20218989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20218989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101001000010001101101
3
Ternary
1102001020020110
4
Quaternary
1031020101231
5
Quinary
20134001424
6
Senary
2001210233
8
Octal
115102155
10
Decimal
20218989
12
Duodecimal
6930979
16
Hexadecimal
134846d
20
Vigesimal
667799
36
Base36
c1d2l
md5
0ff9a3496dc6892688a7ebc256c32a38
sha1
0ca5034bd97d89e5bf70d791470f538120b67991
sha256
0ede157be3cddd42cc3a1dc8d22b83733c642e2b3bb8a836958af15be8826cec
sha512
76bfb2c6f3e2a1afa66dba1c6a2bf95778a459c15e90ded660782a8f7a8028c1795a8ec4aa5b332a9aea9565f584302bb8f7b70d62a2841d24503b546ee4e15d
ripemd-160
11c063c46621ba384f362235811cbc6d51f3b55f
Diameter
40437978
Circumference
127039654.61083
Area
1.28430668957E+15
Volume
3.4623177105391E+22
Surface area
5.1372267582802E+15
Circumference
127039654.61083
Perimeter
80875956
Area
408807516182121
Diagonal
28593968.461272
Surface area
2452845097092726
Volume
8.2656746728036E+21
Space diagonal
35020316.225676
Perimeter
60656967
Area
1.7701884713587E+14
Altitude
17510158.112838
Surface area
1.7701884713587E+14
Volume
9.7411910203689E+20
Height
9531322.8204241