20105621 is an odd 8-digits composite number following 20105620
and preceding 20105622 . In scientific notation, it is written as 2.0105621 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 19427680 positive integers (up to 20105621) that are relatively prime to 20105621.
20105621 has 8 divisors, whose sum is 20793024
The reverse of 20105621 is 12650102
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred five thousand six hundred twenty-one
Scientific notation
2.0105621 × 10^7
Engineering notation
2.0105621 × 10^6
Prime Factorization
41 × 107 × 4583
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20105621
Product of the distinct prime numbers
The prime factorization of 20105621 is 41 × 107 × 4583.
Since it has a total of 3 prime factors.
10 , 4 , 1 , 54 , 396 , 463 , 5359 , 5071 , 32705 , 69737 , 257203 , 353754 , 2771913 , 7366006 , 5925117 , 2831420 , 879748693 , 151442516 , 990777366 , 8774950847
n×2
40211242
n×3
60316863
n×4
80422484
n×5
100528105
n÷2
10052810.5
n÷3
6701873.6666667
n÷3
5026405.25
n÷5
4021124.2
n2
404235995795641
n3
8.1274157260248E+21
n4
1.6340674029689E+29
n5
3.2853939892548E+36
2 √n
4483.929192126
3 √n
271.91875547139
4 √n
66.962147457545
5 √n
28.884409824874
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
-20105620
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 20105621 can be divided by 8 positive divisors.
The sum of these divisors (counting 20105621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101100100110010101
3
Ternary
1101211110201122
4
Quaternary
1030230212111
5
Quinary
20121334441
6
Senary
1554533325
8
Octal
114544625
10
Decimal
20105621
12
Duodecimal
6897245
16
Hexadecimal
132c995
20
Vigesimal
65d411
36
Base36
byxlh
md5
72a8652b02b95ffdf3bb17bc7abaf885
sha1
86d99a93a554a0e95db2dec3a7578b3fb855f8b2
sha256
7b69dd5dffea38c6264ba6dfd0069025db56dfc4e77681c1e8054f6fcda57dbb
sha512
1a7de5f5a5a084e40743619df8d4833d23c86b9d43ba08697af822946d27a35ad4019191be5a7023840d8c9dd91d064706fff6a3af8d7f4804bf2ac9602663dc
ripemd-160
43cab2193bb71d87a665cf3eb378b875cbc1f278
Diameter
40211242
Circumference
126327342.45892
Area
1.2699448347081E+15
Volume
3.4044039383399E+22
Surface area
5.0797793388326E+15
Circumference
126327342.45892
Perimeter
80422484
Area
404235995795641
Diagonal
28433641.898133
Surface area
2425415974773846
Volume
8.1274157260248E+21
Space diagonal
34823957.089724
Perimeter
60316863
Area
1.7503932074156E+14
Altitude
17411978.544862
Surface area
1.7503932074156E+14
Volume
9.5782512889905E+20
Height
9477880.6327111