20130805 is an odd 8-digits composite number following 20130804
and preceding 20130806 . In scientific notation, it is written as 2.0130805 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 14831872 positive integers (up to 20130805) that are relatively prime to 20130805.
20130805 has 8 divisors, whose sum is 24192000
The reverse of 20130805 is 50803102
Previous prime number is 799
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred thirty thousand eight hundred five
Scientific notation
2.0130805 × 10^7
Engineering notation
2.0130805 × 10^6
Prime Factorization
5 × 799 × 5039
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20130805
Product of the distinct prime numbers
The prime factorization of 20130805 is 5 × 799 × 5039.
Since it has a total of 3 prime factors.
5 , 7 , 16 , 66 , 767 , 986 , 433 , 2861 , 55744 , 30851 , 625391 , 690270 , 3524060 , 669390 , 93860432 , 84435110 , 166779734 , 330806800 , 9550549160 , 747647546
n×2
40261610
n×3
60392415
n×4
80523220
n×5
100654025
n÷2
10065402.5
n÷3
6710268.3333333
n÷3
5032701.25
n÷5
4026161
n2
405249309948025
n3
8.1579948349483E+21
n4
1.6422700321335E+29
n5
3.3060217774223E+36
2 √n
4486.7365645868
3 √n
272.0322418888
4 √n
66.983106561183
5 √n
28.891642237999
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
-20130804
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 20130805 can be divided by 8 positive divisors.
The sum of these divisors (counting 20130805) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010101111110101
3
Ternary
1101212202021101
4
Quaternary
1030302233311
5
Quinary
20123141210
6
Senary
1555250101
8
Octal
114625765
10
Decimal
20130805
12
Duodecimal
68a9931
16
Hexadecimal
1332bf5
20
Vigesimal
65g705
36
Base36
bzh11
md5
f6685b04048e2f025e6b886b9e66c8de
sha1
1fbb130a57c2f8d300bdaa1649bdf834781f70d6
sha256
0db44b2eb1f5b4e327ad48a642b598c811e94e901f2bb67beaaac232e90071c9
sha512
b1c5b5b357ea2d22c2a8cbb2b3166312d6d1140aad153b2db0453a29a5a76ccd4162c72ed1166de7c55a35ff392f161dcb869a7b075354a7707034326aa0aa29
ripemd-160
ff985931dc255060e47729848920c7c714a0bca1
Diameter
40261610
Circumference
126485578.1977
Area
1.273128255005E+15
Volume
3.4172128855329E+22
Surface area
5.0925130200202E+15
Circumference
126485578.1977
Perimeter
80523220
Area
405249309948025
Diagonal
28469257.452488
Surface area
2431495859688150
Volume
8.1579948349483E+21
Space diagonal
34867577.057262
Perimeter
60392415
Area
1.7547809864055E+14
Altitude
17433788.528631
Surface area
1.7547809864055E+14
Volume
9.6142891144612E+20
Height
9489752.4841627