20407831 is an odd 8-digits composite number following 20407830
and preceding 20407832 . In scientific notation, it is written as 2.0407831 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 18992160 positive integers (up to 20407831) that are relatively prime to 20407831.
20407831 has 8 divisors, whose sum is 21871584
The reverse of 20407831 is 13870402
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million four hundred seven thousand eight hundred thirty-one
Scientific notation
2.0407831 × 10^7
Engineering notation
2.0407831 × 10^6
Prime Factorization
23 × 37 × 23981
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20407831
Product of the distinct prime numbers
The prime factorization of 20407831 is 23 × 37 × 23981.
Since it has a total of 3 prime factors.
7 , 10 , 68 , 2 , 129 , 454 , 273 , 4330 , 1351 , 47797 , 703992 , 535171 , 505503 , 4627105 , 27833180 , 31121036 , 529918467 , 453697303 , 3957271717 , 4901850715
n×2
40815662
n×3
61223493
n×4
81631324
n×5
102039155
n÷2
10203915.5
n÷3
6802610.3333333
n÷3
5101957.75
n÷5
4081566.2
n2
416479566124561
n3
8.4994446004234E+21
n4
1.734552289993E+29
n5
3.5398449994841E+36
2 √n
4517.5027393462
3 √n
273.27440017693
4 √n
67.212370433918
5 √n
28.970725410912
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20407830
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20407831 can be divided by 8 positive divisors.
The sum of these divisors (counting 20407831) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110110011000010111
3
Ternary
1102101211021121
4
Quaternary
1031312120113
5
Quinary
20211022311
6
Senary
2005224411
8
Octal
115663027
10
Decimal
20407831
12
Duodecimal
6a02107
16
Hexadecimal
1376617
20
Vigesimal
67ajbb
36
Base36
c5es7
md5
76bfa4bb3c2846dbb18cbf326207db7a
sha1
353f0aee71cbf821018e7f881fa1e7b99b470e89
sha256
409d409374436c1d000cbf13d55ff5b092fa20c22e8f223215dfa242608dc45e
sha512
01a79492256099f25df229aa1a31a46438b32bd55c64d9985a3025e146e482acbe0664b0824c1f0d69fb13487d9af9ab152675b92fd24c28ae579bb2badf3851
ripemd-160
d92c2c998bc6dfe8e0e86d33e2e5b823d5264f44
Diameter
40815662
Circumference
128226183.8906
Area
1.3084091453072E+15
Volume
3.5602390288378E+22
Surface area
5.2336365812287E+15
Circumference
128226183.8906
Perimeter
81631324
Area
416479566124561
Diagonal
28861031.378818
Surface area
2498877396747366
Volume
8.4994446004234E+21
Space diagonal
35347400.164279
Perimeter
61223493
Area
1.803409422105E+14
Altitude
17673700.08214
Surface area
1.803409422105E+14
Volume
1.0016691522131E+21
Height
9620343.7929394