20687591 is an odd 8-digits prime number following 20687590
and preceding 20687592 . In scientific notation, it is written as 2.0687591 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 20687590 positive integers (up to 20687591) that are relatively prime to 20687591.
20687591 has 2 divisors, whose sum is 20687592
The reverse of 20687591 is 19578602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million six hundred eighty-seven thousand five hundred ninety-one
Scientific notation
2.0687591 × 10^7
Engineering notation
2.0687591 × 10^6
Prime Factorization
20687591
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20687591
Product of the distinct prime numbers
The prime factorization of 20687591 is 20687591.
Since it has a total of 1 prime factors.
7 , 3 , 52 , 90 , 862 , 191 , 3489 , 4455 , 64978 , 1921 , 125149 , 202231 , 3024937 , 6517194 , 46762433 , 31215208 , 76441990 , 25429874 , 506583792 , 6104138992
n×2
41375182
n×3
62062773
n×4
82750364
n×5
103437955
n÷2
10343795.5
n÷3
6895863.6666667
n÷3
5171897.75
n÷5
4137518.2
n2
427976421383281
n3
8.853801163221E+21
n4
1.8316381726004E+29
n5
3.7892181374744E+36
2 √n
4548.3613532788
3 √n
274.51746122901
4 √n
67.441540264727
5 √n
29.049722244946
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20687592
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10343796
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4548.3614632085
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999033237
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20687591 can be divided by 2 positive divisors.
The sum of these divisors (counting 20687591) is 20687592, the average is 10343796.
Base
System
Value
2
Binary
1001110111010101011100111
3
Ternary
1102221001001002
4
Quaternary
1032322223213
5
Quinary
20244000331
6
Senary
2015223515
8
Octal
116725347
10
Decimal
20687591
12
Duodecimal
6b17b9b
16
Hexadecimal
13baae7
20
Vigesimal
695ijb
36
Base36
cbenb
md5
eddd7a145c6330baa81cd737bcd7036c
sha1
628cb07885f36de142774734cdd062385f5f565a
sha256
0191fa3d16a0da6b005c5e3d33b60c3379459f202a7045d136b67c1fd3e5b7a1
sha512
c2b1444c276ff982c68ddb310bfdc18c0bc293899305df7e2d55659d7554452150e6e44e0b51e96ac40348b6d7fe514a548ffd37ff12582cfe50c79177e6d04b
ripemd-160
7098fe516bb2589110d9efbaf02086bac18e4f1e
Diameter
41375182
Circumference
129983967.81214
Area
1.3445275813274E+15
Volume
3.7086715587626E+22
Surface area
5.3781103253095E+15
Circumference
129983967.81214
Perimeter
82750364
Area
427976421383281
Diagonal
29256671.765028
Surface area
2567858528299686
Volume
8.853801163221E+21
Space diagonal
35831958.698205
Perimeter
62062773
Area
1.8531922656934E+14
Altitude
17915979.349102
Surface area
1.8531922656934E+14
Volume
1.0434304736318E+21
Height
9752223.9216759