20145291 is an odd 8-digits composite number following 20145290
and preceding 20145292 . In scientific notation, it is written as 2.0145291 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 13430192 positive integers (up to 20145291) that are relatively prime to 20145291.
20145291 has 4 divisors, whose sum is 26860392
The reverse of 20145291 is 19254102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred forty-five thousand two hundred ninety-one
Scientific notation
2.0145291 × 10^7
Engineering notation
2.0145291 × 10^6
Prime Factorization
3 × 6715097
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145291
Product of the distinct prime numbers
The prime factorization of 20145291 is 3 × 6715097.
Since it has a total of 2 prime factors.
3 , 9 , 1 , 54 , 409 , 848 , 7531 , 6779 , 27577 , 55321 , 441364 , 739885 , 1252422 , 2557889 , 68076741 , 78684753 , 954094553 , 814011280 , 8989850585 , 3630319983
n×2
40290582
n×3
60435873
n×4
80581164
n×5
100726455
n÷2
10072645.5
n÷3
6715097
n÷3
5036322.75
n÷5
4029058.2
n2
405832749474681
n3
8.1756188354975E+21
n4
1.6470022054618E+29
n5
3.317933870667E+36
2 √n
4488.3505879109
3 √n
272.09747713745
4 √n
66.995153465836
5 √n
28.89579909029
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20145290
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20145291 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145291) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110010010001011
3
Ternary
1101220111010220
4
Quaternary
1030312102023
5
Quinary
20124122131
6
Senary
1555441123
8
Octal
114662213
10
Decimal
20145291
12
Duodecimal
68b61a3
16
Hexadecimal
133648b
20
Vigesimal
65i34b
36
Base36
bzs7f
md5
7f57f2da89c4de888db7660f881b27db
sha1
985f816212eb3cab8e90f7bae581ea49568e0630
sha256
7efe8305d11a949397e430cc42e3561d79da7ea47f0fb9e98f88a10688f517af
sha512
2b8e39b60995f02f4b5936575fff1e162cb295b1fd90147b29b2d47bf87d0a93469eeac02478530b986714ae75d8578ab6cb8fcad9c4b8d90280af9747afcaa1
ripemd-160
a5d6ceb3c307e9b420c2b4872e64b141447d4365
Diameter
40290582
Circumference
126576596.42006
Area
1.2749611843358E+15
Volume
3.4245952096199E+22
Surface area
5.0998447373432E+15
Circumference
126576596.42006
Perimeter
80581164
Area
405832749474681
Diagonal
28489743.750153
Surface area
2434996496848086
Volume
8.1756188354975E+21
Space diagonal
34892667.54526
Perimeter
60435873
Area
1.7573073536638E+14
Altitude
17446333.77263
Surface area
1.7573073536638E+14
Volume
9.6350591982946E+20
Height
9496581.2500509