20581290 is an even 8-digits composite number following 20581289
and preceding 20581291 . In scientific notation, it is written as 2.0581290 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 5488128 positive integers (up to 20581290) that are relatively prime to 20581290.
20581290 has 24 divisors, whose sum is 41621580
The reverse of 20581290 is 09218502
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million five hundred eighty-one thousand two hundred ninety
Scientific notation
2.0581290 × 10^7
Engineering notation
2.0581290 × 10^6
Prime Factorization
2 × 5 × 9 × 9 × 25409
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2286810
Product of the distinct prime numbers
The prime factorization of 20581290 is 2 × 5 × 9 × 9 × 25409.
Since it has a total of 5 prime factors.
9 , 2 , 15 , 81 , 543 , 217 , 8621 , 3112 , 61496 , 41089 , 704892 , 53780 , 5804846 , 290071 , 21821392 , 15578707 , 321288317 , 112780390 , 222237086 , 5624677692
n×2
41162580
n×3
61743870
n×4
82325160
n×5
102906450
n÷2
10290645
n÷3
6860430
n÷3
5145322.5
n÷5
4116258
n2
423589498064100
n3
8.7180183006117E+21
n4
1.794280628702E+29
n5
3.6928609960697E+36
2 √n
4536.6606661729
3 √n
274.04646058901
4 √n
67.354737518402
5 √n
29.019806909347
1 , 2 , 5 , 9 , 10 , 18 , 45 , 81 , 90 , 162 , 405 , 810 , 25409 , 50818 , 127045 , 228681 , 254090 , 457362 , 1143405 , 2058129 , 2286810 , 4116258 , 10290645 , 20581290
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20581289
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20581290 can be divided by 24 positive divisors.
The sum of these divisors (counting 20581290) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001110100000101110101010
3
Ternary
1102201122020000
4
Quaternary
1032200232222
5
Quinary
20232100130
6
Senary
2013043430
8
Octal
116405652
10
Decimal
20581290
12
Duodecimal
6a86576
16
Hexadecimal
13a0baa
20
Vigesimal
68cd4a
36
Base36
c94mi
md5
0a958ba11e93261c5c3428e48e728c6f
sha1
e38b36b91e529d4ebaddeb444b0d68014225efbc
sha256
b3305e4da983cba3cade36fe4b47ad5b69d981fdcbdfcb5326fd5972d5b4c2c4
sha512
85f83dc083d2fd7c3d381ac665002e112012fcc1b87440792b2c6a248d3293391127b2a07dc6e04bc53d0aec126c3344bb0eb7abc3198902eebc813369068635
ripemd-160
54a5c3e5f479b8bbba7cf903447a614414b8d7f3
Diameter
41162580
Circumference
129316058.9308
Area
1.330745655256E+15
Volume
3.6517949662751E+22
Surface area
5.3229826210239E+15
Circumference
129316058.9308
Perimeter
82325160
Area
423589498064100
Diagonal
29106339.449134
Surface area
2541536988384600
Volume
8.7180183006117E+21
Space diagonal
35647839.965309
Perimeter
61743870
Area
1.834196330499E+14
Altitude
17823919.982655
Surface area
1.834196330499E+14
Volume
1.0274283098118E+21
Height
9702113.1497113