20130820 is an even 8-digits composite number following 20130819
and preceding 20130821 . In scientific notation, it is written as 2.0130820 × 10^7.
The sum of its digits is 16. It has a total of 5 prime factors and 24 positive divisors.
There are 7793280 positive integers (up to 20130820) that are relatively prime to 20130820.
20130820 has 24 divisors, whose sum is 42515928
The reverse of 20130820 is 02803102
Previous prime number is 5561
Is Prime? no
Number parity even
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million one hundred thirty thousand eight hundred twenty
Scientific notation
2.0130820 × 10^7
Engineering notation
2.0130820 × 10^6
Prime Factorization
2 × 2 × 5 × 5561 × 181
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10065410
Product of the distinct prime numbers
The prime factorization of 20130820 is 2 × 2 × 5 × 5561 × 181.
Since it has a total of 5 prime factors.
2 , 1 , 69 , 7 , 537 , 158 , 3760 , 307 , 69294 , 91371 , 444968 , 8677 , 3863165 , 7982901 , 38126115 , 9309696 , 47611599 , 830641087 , 6464671362 , 8314358002
n×2
40261640
n×3
60392460
n×4
80523280
n×5
100654100
n÷2
10065410
n÷3
6710273.3333333
n÷3
5032705
n÷5
4026164
n2
405249913872400
n3
8.1580130711808E+21
n4
1.6422749269359E+29
n5
3.3060340944659E+36
2 √n
4486.73823618
3 √n
272.03230945494
4 √n
66.983119038904
5 √n
28.891646543584
1 , 2 , 4 , 5 , 10 , 20 , 181 , 362 , 724 , 905 , 1810 , 3620 , 5561 , 11122 , 22244 , 27805 , 55610 , 111220 , 1006541 , 2013082 , 4026164 , 5032705 , 10065410 , 20130820
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20130819
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20130820 can be divided by 24 positive divisors.
The sum of these divisors (counting 20130820) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100110010110000000100
3
Ternary
1101212202021221
4
Quaternary
1030302300010
5
Quinary
20123141240
6
Senary
1555250124
8
Octal
114626004
10
Decimal
20130820
12
Duodecimal
68a9944
16
Hexadecimal
1332c04
20
Vigesimal
65g710
36
Base36
bzh1g
md5
20a2ffb1ccfabec8d98f0b392442bffa
sha1
3f3ea582689b974bef3751ada87a50f13273a232
sha256
5cc5a69ac1757389c144207827a3ac971c36f376e9e422efbcdf064039302437
sha512
9d815d94062456cc1a5be16746414e84db4cebc67d581880e111caf1efb7bbda7bb972a2d2dd66ae43eba5b5c3f47d46eddd2d8d84c077e95c8838092590b917
ripemd-160
8299601ed5b89300cb97fb2dbe9b0d06409761bd
Diameter
40261640
Circumference
126485672.44548
Area
1.2731301522894E+15
Volume
3.4172205243081E+22
Surface area
5.0925206091577E+15
Circumference
126485672.44548
Perimeter
80523280
Area
405249913872400
Diagonal
28469278.665692
Surface area
2431499483234400
Volume
8.1580130711808E+21
Space diagonal
34867603.038024
Perimeter
60392460
Area
1.7547836014748E+14
Altitude
17433801.519012
Surface area
1.7547836014748E+14
Volume
9.6143106060674E+20
Height
9489759.5552305