20105989 is an odd 8-digits composite number following 20105988
and preceding 20105990 . In scientific notation, it is written as 2.0105989 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 19678156 positive integers (up to 20105989) that are relatively prime to 20105989.
20105989 has 4 divisors, whose sum is 20533824
The reverse of 20105989 is 98950102
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred five thousand nine hundred eighty-nine
Scientific notation
2.0105989 × 10^7
Engineering notation
2.0105989 × 10^6
Prime Factorization
47 × 427787
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20105989
Product of the distinct prime numbers
The prime factorization of 20105989 is 47 × 427787.
Since it has a total of 2 prime factors.
5 , 5 , 41 , 9 , 58 , 753 , 8798 , 7321 , 7330 , 83541 , 304148 , 985686 , 7437897 , 2976922 , 24353688 , 31529836 , 45182064 , 910224297 , 1313081707 , 2502014099
n×2
40211978
n×3
60317967
n×4
80423956
n×5
100529945
n÷2
10052994.5
n÷3
6701996.3333333
n÷3
5026497.25
n÷5
4021197.8
n2
404250793668121
n3
8.1278620107325E+21
n4
1.6341870418131E+29
n5
3.2856946686636E+36
2 √n
4483.9702273766
3 √n
271.92041446834
4 √n
66.962453863166
5 √n
28.88451556033
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
-20105988
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 20105989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20105989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101100101100000101
3
Ternary
1101211111020021
4
Quaternary
1030230230011
5
Quinary
20121342424
6
Senary
1554535141
8
Octal
114545405
10
Decimal
20105989
12
Duodecimal
68974b1
16
Hexadecimal
132cb05
20
Vigesimal
65d4j9
36
Base36
byxvp
md5
865f69b0cc4cfbfd6f9de7d3d09aba41
sha1
9331f90de164a35dc3ee4fedef09219e885e5c19
sha256
fb866feda69d7d67700e853a5b2ec05310f4f746a02eec846b24dd0129abb6a9
sha512
2df0a3a6f7df9900e1bd487c61a3e06889639bea91a3032f6c8194931c76dbb2b227ba6b56d6641b985895a4ebe121aab757635800983041ae72bf664d3cc0a9
ripemd-160
ba003623eab53a1c7d09108e616bfe402c50368d
Diameter
40211978
Circumference
126329654.67111
Area
1.2699913235956E+15
Volume
3.4045908776412E+22
Surface area
5.0799652943824E+15
Circumference
126329654.67111
Perimeter
80423956
Area
404250793668121
Diagonal
28434162.328724
Surface area
2425504762008726
Volume
8.1278620107325E+21
Space diagonal
34824594.484421
Perimeter
60317967
Area
1.7504572840831E+14
Altitude
17412297.24221
Surface area
1.7504572840831E+14
Volume
9.5787772405625E+20
Height
9478054.1095748