20643670 is an even 8-digits composite number following 20643669
and preceding 20643671 . In scientific notation, it is written as 2.0643670 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 8144064 positive integers (up to 20643670) that are relatively prime to 20643670.
20643670 has 16 divisors, whose sum is 37668960
The reverse of 20643670 is 07634602
Previous prime number is 73
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million six hundred forty-three thousand six hundred seventy
Scientific notation
2.0643670 × 10^7
Engineering notation
2.0643670 × 10^6
Prime Factorization
2 × 5 × 73 × 28279
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20643670
Product of the distinct prime numbers
The prime factorization of 20643670 is 2 × 5 × 73 × 28279.
Since it has a total of 4 prime factors.
1 , 6 , 31 , 90 , 482 , 850 , 2949 , 7859 , 33617 , 78945 , 957150 , 641972 , 5183728 , 2592369 , 98061463 , 84862887 , 760095777 , 488840813 , 3579009521 , 4866969156
n×2
41287340
n×3
61931010
n×4
82574680
n×5
103218350
n÷2
10321835
n÷3
6881223.3333333
n÷3
5160917.5
n÷5
4128734
n2
426161111068900
n3
8.7975293437397E+21
n4
1.8161329258748E+29
n5
3.7491648797894E+36
2 √n
4543.5305655404
3 √n
274.32305122208
4 √n
67.405716119187
5 √n
29.037376895003
1 , 2 , 5 , 10 , 73 , 146 , 365 , 730 , 28279 , 56558 , 141395 , 282790 , 2064367 , 4128734 , 10321835 , 20643670
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
-20643669
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 20643670 can be divided by 16 positive divisors.
The sum of these divisors (counting 20643670) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110101111111101010110
3
Ternary
1102211210210101
4
Quaternary
1032233331112
5
Quinary
20241044140
6
Senary
2014244314
8
Octal
116577526
10
Decimal
20643670
12
Duodecimal
6ab669a
16
Hexadecimal
13aff56
20
Vigesimal
69093a
36
Base36
cagra
md5
03150196c7369101e258207ef2998dcf
sha1
0d17a0f11ef3237715df845b99d9708402617ea9
sha256
8286b1fcdd57b027ef9ef04d3da2de3bbc4a89d9de4e24f8a180055329fb504f
sha512
221828515b514875e0d7ef31d8a87b3af572e0eea7ea9eec093d7abb42238f8c81e9e7e9f22a8ed79ec4adfba2afbe972ea805880551d4cdf0ea04055017ae87
ripemd-160
0502a344b7189d53e0fe0ebd9267029261f5fc90
Diameter
41287340
Circumference
129708004.03026
Area
1.3388246157797E+15
Volume
3.6851004741378E+22
Surface area
5.3552984631189E+15
Circumference
129708004.03026
Perimeter
82574680
Area
426161111068900
Diagonal
29194558.091155
Surface area
2556966666413400
Volume
8.7975293437397E+21
Space diagonal
35755885.294685
Perimeter
61931010
Area
1.8453317414533E+14
Altitude
17877942.647343
Surface area
1.8453317414533E+14
Volume
1.0367987761077E+21
Height
9731519.3637182