20781629 is an odd 8-digits composite number following 20781628
and preceding 20781630 . In scientific notation, it is written as 2.0781629 × 10^7.
The sum of its digits is 35. It has a total of 5 prime factors and 24 positive divisors.
There are 17864000 positive integers (up to 20781629) that are relatively prime to 20781629.
20781629 has 24 divisors, whose sum is 24131520
The reverse of 20781629 is 92618702
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million seven hundred eighty-one thousand six hundred twenty-nine
Scientific notation
2.0781629 × 10^7
Engineering notation
2.0781629 × 10^6
Prime Factorization
41 × 11 × 11 × 71 × 59
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1889239
Product of the distinct prime numbers
The prime factorization of 20781629 is 41 × 11 × 11 × 71 × 59.
Since it has a total of 5 prime factors.
9 , 6 , 51 , 34 , 725 , 52 , 860 , 7953 , 9032 , 84708 , 475992 , 629330 , 6807362 , 2749104 , 64397817 , 60529444 , 573423149 , 715290875 , 8704276542 , 9000700529
n×2
41563258
n×3
62344887
n×4
83126516
n×5
103908145
n÷2
10390814.5
n÷3
6927209.6666667
n÷3
5195407.25
n÷5
4156325.8
n2
431876103893641
n3
8.9750889650831E+21
n4
1.8651696911435E+29
n5
3.8761264543389E+36
2 √n
4558.6872013772
3 √n
274.93278357207
4 √n
67.518050929934
5 √n
29.076084175934
1 , 11 , 41 , 59 , 71 , 121 , 451 , 649 , 781 , 2419 , 2911 , 4189 , 4961 , 7139 , 8591 , 26609 , 32021 , 46079 , 171749 , 292699 , 352231 , 506869 , 1889239 , 20781629
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
-20781628
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 20781629 can be divided by 24 positive divisors.
The sum of these divisors (counting 20781629) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001111010001101000111101
3
Ternary
1110002211000222
4
Quaternary
1033101220331
5
Quinary
20310003004
6
Senary
2021231125
8
Octal
117215075
10
Decimal
20781629
12
Duodecimal
6b624a5
16
Hexadecimal
13d1a3d
20
Vigesimal
69he19
36
Base36
cdf7h
md5
26cbdd2619a7fb91cdfc3035017eb126
sha1
b54166d0b8eccab96eb2f72d8980c55809d8a96a
sha256
9fb8754084a1bb62e574237a1573b73c4cde5d3dcf1a09d6b39569f7616e59b1
sha512
b91a5802860c434138100b934747e0b22305cfcbc297af01d528b34177b80b8eb162f1821101e5602021a4ca9372811155af0766e682f3ed84ad3f7cadc121be
ripemd-160
8bfb6edcae331897fee3498a6ea8b660f712efef
Diameter
41563258
Circumference
130574825.99206
Area
1.3567787952532E+15
Volume
3.7594764744027E+22
Surface area
5.427115181013E+15
Circumference
130574825.99206
Perimeter
83126516
Area
431876103893641
Diagonal
29389661.580006
Surface area
2591256623361846
Volume
8.9750889650831E+21
Space diagonal
35994837.292047
Perimeter
62344887
Area
1.8700783862967E+14
Altitude
17997418.646023
Surface area
1.8700783862967E+14
Volume
1.0577243781605E+21
Height
9796553.860002