20131815 is an odd 8-digits composite number following 20131814
and preceding 20131816 . In scientific notation, it is written as 2.0131815 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 9760800 positive integers (up to 20131815) that are relatively prime to 20131815.
20131815 has 4 divisors, whose sum is 20253992
The reverse of 20131815 is 51813102
Previous prime number is 165
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred thirty-one thousand eight hundred fifteen
Scientific notation
2.0131815 × 10^7
Engineering notation
2.0131815 × 10^6
Prime Factorization
165 × 122011
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20131815
Product of the distinct prime numbers
The prime factorization of 20131815 is 165 × 122011.
Since it has a total of 2 prime factors.
3 , 3 , 93 , 39 , 926 , 388 , 3073 , 611 , 49964 , 27229 , 11041 , 727677 , 5941762 , 1957090 , 16922474 , 46704819 , 546250987 , 898511906 , 5849750886 , 5265724658
n×2
40263630
n×3
60395445
n×4
80527260
n×5
100659075
n÷2
10065907.5
n÷3
6710605
n÷3
5032953.75
n÷5
4026363
n2
405289975194225
n3
8.1592228019647E+21
n4
1.6425996399294E+29
n5
3.3068512070124E+36
2 √n
4486.8491171422
3 √n
272.03679126755
4 √n
66.983946712195
5 √n
28.891932141687
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
-20131814
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 20131815 can be divided by 4 positive divisors.
The sum of these divisors (counting 20131815) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010111111100111
3
Ternary
1101212210122210
4
Quaternary
1030302333213
5
Quinary
20123204230
6
Senary
1555254503
8
Octal
114627747
10
Decimal
20131815
12
Duodecimal
68aa433
16
Hexadecimal
1332fe7
20
Vigesimal
65g9af
36
Base36
bzht3
md5
e3a1b8ab9b1f472b7a5c6ac3bd898097
sha1
4a88b59dc28cf1b11499677ce3835be16316b6d5
sha256
c2387b6bcf94408a00d0b0c455bbb710c4e5095ffc52ab47d0e41f25c266b227
sha512
93aed438bfee6f1bcb894d54599d2b0564669b4bd7ed687b747923d1e385cd8249e6f069761064d0c5b00f6a8781f2bc7179b2e66a78af4fbf94c2dad96b05e1
ripemd-160
1c31a24bc5df51637868dcab80a640769b87120e
Diameter
40263630
Circumference
126491924.21486
Area
1.2732560086438E+15
Volume
3.417727255154E+22
Surface area
5.0930240345751E+15
Circumference
126491924.21486
Perimeter
80527260
Area
405289975194225
Diagonal
28470685.808186
Surface area
2431739851165350
Volume
8.1592228019647E+21
Space diagonal
34869326.428577
Perimeter
60395445
Area
1.7549570720868E+14
Altitude
17434663.214289
Surface area
1.7549570720868E+14
Volume
9.6157362874686E+20
Height
9490228.6027287