20131813 is an odd 8-digits composite number following 20131812
and preceding 20131814 . In scientific notation, it is written as 2.0131813 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 18536448 positive integers (up to 20131813) that are relatively prime to 20131813.
20131813 has 8 divisors, whose sum is 21735000
The reverse of 20131813 is 31813102
Previous prime number is 449
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred thirty-one thousand eight hundred thirteen
Scientific notation
2.0131813 × 10^7
Engineering notation
2.0131813 × 10^6
Prime Factorization
13 × 449 × 3449
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20131813
Product of the distinct prime numbers
The prime factorization of 20131813 is 13 × 449 × 3449.
Since it has a total of 3 prime factors.
3 , 9 , 73 , 84 , 807 , 569 , 3854 , 1704 , 51440 , 11304 , 543715 , 690272 , 9030634 , 5397729 , 59413183 , 83071262 , 941644944 , 688028813 , 8346757115 , 4943833043
n×2
40263626
n×3
60395439
n×4
80527252
n×5
100659065
n÷2
10065906.5
n÷3
6710604.3333333
n÷3
5032953.25
n÷5
4026362.6
n2
405289894666969
n3
8.1592203702251E+21
n4
1.6425989871916E+29
n5
3.3068495644131E+36
2 √n
4486.8488942687
3 √n
272.03678225903
4 √n
66.983945048561
5 √n
28.891931567632
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
-20131812
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 20131813 can be divided by 8 positive divisors.
The sum of these divisors (counting 20131813) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010111111100101
3
Ternary
1101212210122201
4
Quaternary
1030302333211
5
Quinary
20123204223
6
Senary
1555254501
8
Octal
114627745
10
Decimal
20131813
12
Duodecimal
68aa431
16
Hexadecimal
1332fe5
20
Vigesimal
65g9ad
36
Base36
bzht1
md5
e0c46f25cc43d38a7406e480331c3ff6
sha1
d2e117f1ea6b15b7b1d82f9aece1fc37ac994a12
sha256
56965e6e577b52a4c1c0855aa7f8a633dda2cd391556cb9a05a91ef0c17e3593
sha512
a27902df5579280da840765d71206a0a5d37d18896b116a4d4d42e52c37866b0b5b073a962db10090e0a6b3fbf1d7fadf32aead9e58c4aef75c6371b60feb338
ripemd-160
8535d03619bca256e4713ed0edf251edba9bdbef
Diameter
40263626
Circumference
126491911.64849
Area
1.2732557556599E+15
Volume
3.4177262365493E+22
Surface area
5.0930230226397E+15
Circumference
126491911.64849
Perimeter
80527252
Area
405289894666969
Diagonal
28470682.979759
Surface area
2431739368001814
Volume
8.1592203702251E+21
Space diagonal
34869322.964476
Perimeter
60395439
Area
1.7549567233936E+14
Altitude
17434661.482238
Surface area
1.7549567233936E+14
Volume
9.615733421636E+20
Height
9490227.6599197