20687418 is an even 8-digits composite number following 20687417
and preceding 20687419 . In scientific notation, it is written as 2.0687418 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors.
There are 6671520 positive integers (up to 20687418) that are relatively prime to 20687418.
20687418 has 32 divisors, whose sum is 35622720
The reverse of 20687418 is 81478602
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million six hundred eighty-seven thousand four hundred eighteen
Scientific notation
2.0687418 × 10^7
Engineering notation
2.0687418 × 10^6
Prime Factorization
2 × 9 × 227 × 61 × 83
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20687418
Product of the distinct prime numbers
The prime factorization of 20687418 is 2 × 9 × 227 × 61 × 83.
Since it has a total of 5 prime factors.
2 , 6 , 49 , 100 , 526 , 652 , 9456 , 4125 , 69630 , 2876 , 980761 , 180634 , 1087726 , 2336376 , 13155328 , 44106702 , 709606888 , 438955738 , 8594377903 , 5090464515
n×2
41374836
n×3
62062254
n×4
82749672
n×5
103437090
n÷2
10343709
n÷3
6895806
n÷3
5171854.5
n÷5
4137483.6
n2
427969263506724
n3
8.8535790453157E+21
n4
1.8315769050649E+29
n5
3.7890597034223E+36
2 √n
4548.3423354009
3 √n
274.51669600937
4 √n
67.441399269298
5 √n
29.049673659117
1 , 2 , 9 , 18 , 61 , 83 , 122 , 166 , 227 , 454 , 549 , 747 , 1098 , 1494 , 2043 , 4086 , 5063 , 10126 , 13847 , 18841 , 27694 , 37682 , 45567 , 91134 , 124623 , 169569 , 249246 , 339138 , 1149301 , 2298602 , 10343709 , 20687418
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20687417
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20687418 can be divided by 32 positive divisors.
The sum of these divisors (counting 20687418) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001110111010101000111010
3
Ternary
1102221000210200
4
Quaternary
1032322220322
5
Quinary
20243444133
6
Senary
2015223030
8
Octal
116725072
10
Decimal
20687418
12
Duodecimal
6b17a76
16
Hexadecimal
13baa3a
20
Vigesimal
695iai
36
Base36
cbeii
md5
953d41ce63c51692361fee6634432537
sha1
5766d2b56345e5f0ef9a6cec284de06973fd0cdd
sha256
154538a8ac5bb24d7df5d32b11957affbde009b28236f081e8825b14aec312fa
sha512
1b01b42ebc4c32b0c05878fa52b6cc6f5b55f5ce8187e3f3f7ba408cb8e1ffdf9c948b9549c17da23748115bb87be3cdf1341de27e5514a852aa9785f844eb23
ripemd-160
1a62b1368310d0e528eb36790acecdda21115f9d
Diameter
41374836
Circumference
129982880.82108
Area
1.344505094195E+15
Volume
3.7085785182321E+22
Surface area
5.3780203767798E+15
Circumference
129982880.82108
Perimeter
82749672
Area
427969263506724
Diagonal
29256427.106081
Surface area
2567815581040344
Volume
8.8535790453157E+21
Space diagonal
35831659.053415
Perimeter
62062254
Area
1.8531612711787E+14
Altitude
17915829.526707
Surface area
1.8531612711787E+14
Volume
1.0434042967856E+21
Height
9752142.3686938