20105289 is an odd 8-digits composite number following 20105288
and preceding 20105290 . In scientific notation, it is written as 2.0105289 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 12820632 positive integers (up to 20105289) that are relatively prime to 20105289.
20105289 has 8 divisors, whose sum is 27195840
The reverse of 20105289 is 98250102
Previous prime number is 69
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred five thousand two hundred eighty-nine
Scientific notation
2.0105289 × 10^7
Engineering notation
2.0105289 × 10^6
Prime Factorization
3 × 69 × 97127
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20105289
Product of the distinct prime numbers
The prime factorization of 20105289 is 3 × 69 × 97127.
Since it has a total of 3 prime factors.
6 , 6 , 68 , 55 , 261 , 149 , 2351 , 9101 , 55062 , 9060 , 187849 , 427891 , 6158334 , 2209948 , 4335809 , 52369423 , 859325352 , 650035624 , 4269388471 , 2211348266
n×2
40210578
n×3
60315867
n×4
80421156
n×5
100526445
n÷2
10052644.5
n÷3
6701763
n÷3
5026322.25
n÷5
4021057.8
n2
404222645773521
n3
8.1270131136213E+21
n4
1.6339594735615E+29
n5
3.2851227430241E+36
2 √n
4483.8921708712
3 √n
271.91725875026
4 √n
66.961871022778
5 √n
28.884314431776
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
-20105288
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 20105289 can be divided by 8 positive divisors.
The sum of these divisors (counting 20105289) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101100100001001001
3
Ternary
1101211110021100
4
Quaternary
1030230201021
5
Quinary
20121332124
6
Senary
1554532013
8
Octal
114544111
10
Decimal
20105289
12
Duodecimal
6897009
16
Hexadecimal
132c849
20
Vigesimal
65d349
36
Base36
byxc9
md5
a5ebe53a456ee6410c12955f506cea5f
sha1
6aebeca1ffb022e7aff9ea76f6a416a0d13eff85
sha256
1d44bab4e2bb019c454780cb2fbfd05f2ce4a096c44b989aa689460cd18fbdb6
sha512
8cf11a53dc498d9e91e686d1ebb14a2bdac0bd735f267d43f2927209c978ce1dbbe27ce37a630ae6771f47a5b3f57179534d80106d3e8d506d4ee268c39201ca
ripemd-160
f3d0c1a7c6fc3b7439012f36265b7a916779227a
Diameter
40210578
Circumference
126325256.4414
Area
1.2699028943767E+15
Volume
3.4042352924507E+22
Surface area
5.0796115775069E+15
Circumference
126325256.4414
Perimeter
80421156
Area
404222645773521
Diagonal
28433172.379231
Surface area
2425335874641126
Volume
8.1270131136213E+21
Space diagonal
34823382.048856
Perimeter
60315867
Area
1.7503354001241E+14
Altitude
17411691.024428
Surface area
1.7503354001241E+14
Volume
9.5777768057227E+20
Height
9477724.1264102