20508910 is an even 8-digits composite number following 20508909
and preceding 20508911 . In scientific notation, it is written as 2.0508910 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 8150688 positive integers (up to 20508910) that are relatively prime to 20508910.
20508910 has 16 divisors, whose sum is 37154016
The reverse of 20508910 is 01980502
Previous prime number is 157
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million five hundred eight thousand nine hundred ten
Scientific notation
2.0508910 × 10^7
Engineering notation
2.0508910 × 10^6
Prime Factorization
2 × 5 × 157 × 13063
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20508910
Product of the distinct prime numbers
The prime factorization of 20508910 is 2 × 5 × 157 × 13063.
Since it has a total of 4 prime factors.
5 , 7 , 52 , 51 , 486 , 296 , 7901 , 2399 , 85269 , 78214 , 337258 , 179991 , 9853839 , 4887660 , 68030343 , 13550529 , 747861549 , 308705384 , 2114262124 , 4098581144
n×2
41017820
n×3
61526730
n×4
82035640
n×5
102544550
n÷2
10254455
n÷3
6836303.3333333
n÷3
5127227.5
n÷5
4101782
n2
420615389388100
n3
8.6263631655755E+21
n4
1.769173057901E+29
n5
3.6283811018917E+36
2 √n
4528.6764070753
3 √n
273.72482897215
4 √n
67.29544120574
5 √n
28.999366843512
1 , 2 , 5 , 10 , 157 , 314 , 785 , 1570 , 13063 , 26126 , 65315 , 130630 , 2050891 , 4101782 , 10254455 , 20508910
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20508909
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20508910 can be divided by 16 positive divisors.
The sum of these divisors (counting 20508910) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110001111000011101110
3
Ternary
1102120221221021
4
Quaternary
1032033003232
5
Quinary
20222241120
6
Senary
2011324354
8
Octal
116170356
10
Decimal
20508910
12
Duodecimal
6a506ba
16
Hexadecimal
138f0ee
20
Vigesimal
683c5a
36
Base36
c7kry
md5
dbcb6f752ccf18a1aea76d082fbb8016
sha1
f4ea012d4406f5c18e01d0a8cdadea89fbcff2ed
sha256
73dee55c63336dcf80c6010ec3399a3855fb5e2405c31c8efa77d1378b8a5d43
sha512
31bf8628b8826bff6aee9b236c8baf0c2a198e4d149e0e26a9df0a9b4d32d1f99532029823b0101a1462116b4483060d7192081947dd6290edb7040212574b77
ripemd-160
cdaa57b68bfb5410a572350aa351eda15383623e
Diameter
41017820
Circumference
128861281.97827
Area
1.3214022172885E+15
Volume
3.6134025530893E+22
Surface area
5.2856088691539E+15
Circumference
128861281.97827
Perimeter
82035640
Area
420615389388100
Diagonal
29003978.671489
Surface area
2523692336328600
Volume
8.6263631655755E+21
Space diagonal
35522474.127857
Perimeter
61526730
Area
1.8213180621639E+14
Altitude
17761237.063929
Surface area
1.8213180621639E+14
Volume
1.0166266485594E+21
Height
9667992.8904964