20718908 is an even 8-digits composite number following 20718907
and preceding 20718909 . In scientific notation, it is written as 2.0718908 × 10^7.
The sum of its digits is 35. It has a total of 5 prime factors and 24 positive divisors.
There are 8858304 positive integers (up to 20718908) that are relatively prime to 20718908.
20718908 has 24 divisors, whose sum is 41536992
The reverse of 20718908 is 80981702
Previous prime number is 677
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million seven hundred eighteen thousand nine hundred eight
Scientific notation
2.0718908 × 10^7
Engineering notation
2.0718908 × 10^6
Prime Factorization
2 × 2 × 7 × 677 × 1093
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10359454
Product of the distinct prime numbers
The prime factorization of 20718908 is 2 × 2 × 7 × 677 × 1093.
Since it has a total of 5 prime factors.
2 , 4 , 76 , 70 , 147 , 254 , 8238 , 8684 , 54605 , 21321 , 131787 , 709699 , 7864143 , 9837898 , 97477077 , 81784793 , 58304479 , 119817499 , 8196480539 , 3036968386
n×2
41437816
n×3
62156724
n×4
82875632
n×5
103594540
n÷2
10359454
n÷3
6906302.6666667
n÷3
5179727
n÷5
4143781.6
n2
429273148712464
n3
8.8940708750439E+21
n4
1.8427543620551E+29
n5
3.8179858094019E+36
2 √n
4551.8027198023
3 √n
274.65591345193
4 √n
67.467049141061
5 √n
29.058512053071
1 , 2 , 4 , 7 , 14 , 28 , 677 , 1093 , 1354 , 2186 , 2708 , 4372 , 4739 , 7651 , 9478 , 15302 , 18956 , 30604 , 739961 , 1479922 , 2959844 , 5179727 , 10359454 , 20718908
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
-20718907
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 20718908 can be divided by 24 positive divisors.
The sum of these divisors (counting 20718908) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001111000010010100111100
3
Ternary
1102222121222222
4
Quaternary
1033002110330
5
Quinary
20301001113
6
Senary
2020024512
8
Octal
117022474
10
Decimal
20718908
12
Duodecimal
6b32138
16
Hexadecimal
13c253c
20
Vigesimal
699h58
36
Base36
cc2t8
md5
e64463be183489869abf0ed6568b3c63
sha1
3778bbab440806cc56f55b25b3b384ad48408ec5
sha256
1202522c1dff746f57bc95b5e97bdc4a7bc00bbb15e27ca29caa7647b9f509f2
sha512
4c324a9700c59cd2c958977e188f9973d6db10c27c04364b0640b21db7afa41fd8c0a1b1e17ef0fcb1b98dc3d41ef026db074e72dc3c63d4830a1e1dd4f008c5
ripemd-160
882132f9af57f79702897f1383e297219e0158cb
Diameter
41437816
Circumference
130180738.32641
Area
1.3486013703784E+15
Volume
3.725539696206E+22
Surface area
5.3944054815137E+15
Circumference
130180738.32641
Perimeter
82875632
Area
429273148712464
Diagonal
29300960.69116
Surface area
2575638892274784
Volume
8.8940708750439E+21
Space diagonal
35886201.333345
Perimeter
62156724
Area
1.8588072597376E+14
Altitude
17943100.666673
Surface area
1.8588072597376E+14
Volume
1.0481763046829E+21
Height
9766986.8970535