20131731 is an odd 8-digits composite number following 20131730
and preceding 20131732 . In scientific notation, it is written as 2.0131731 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 13400640 positive integers (up to 20131731) that are relatively prime to 20131731.
20131731 has 12 divisors, whose sum is 29123640
The reverse of 20131731 is 13713102
Previous prime number is 2539
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred thirty-one thousand seven hundred thirty-one
Scientific notation
2.0131731 × 10^7
Engineering notation
2.0131731 × 10^6
Prime Factorization
3 × 3 × 2539 × 881
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6710577
Product of the distinct prime numbers
The prime factorization of 20131731 is 3 × 3 × 2539 × 881.
Since it has a total of 4 prime factors.
5 , 8 , 19 , 83 , 345 , 724 , 1850 , 9432 , 50666 , 95909 , 588524 , 920820 , 79679 , 3166652 , 13487074 , 5178483 , 177957952 , 220024927 , 5557401483 , 8629445451
n×2
40263462
n×3
60395193
n×4
80526924
n×5
100658655
n÷2
10065865.5
n÷3
6710577
n÷3
5032932.75
n÷5
4026346.2
n2
405286593056361
n3
8.1591206693171E+21
n4
1.6425722251123E+29
n5
3.3067822184033E+36
2 √n
4486.8397564433
3 √n
272.03641290918
4 √n
66.983876839455
5 √n
28.891908031329
1 , 3 , 9 , 881 , 2539 , 2643 , 7617 , 7929 , 22851 , 2236859 , 6710577 , 20131731
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20131730
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20131731 can be divided by 12 positive divisors.
The sum of these divisors (counting 20131731) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110010111110010011
3
Ternary
1101212210112200
4
Quaternary
1030302332103
5
Quinary
20123203411
6
Senary
1555254243
8
Octal
114627623
10
Decimal
20131731
12
Duodecimal
68aa383
16
Hexadecimal
1332f93
20
Vigesimal
65g96b
36
Base36
bzhqr
md5
560d002dd25578b44d43bf0e35bbec1d
sha1
d95d65cfc9cd8aab91c9ea6515b059c5cb009f5d
sha256
12285f747df2c49fa787465dcc47382bb1ca4c4b20d633be8429a3caec42c102
sha512
26067324aa3a4eb26485ee9fcbcef45c5ff5b391c7d5e26929ae8a65e08e43cbf133dc9bf62b0fb4f0ccaf0d71aa6ee87fc01acdd9c27614f6cc68bc79402011
ripemd-160
1c2a8170871ecc93e95722b0203584f1e142507a
Diameter
40263462
Circumference
126491396.42729
Area
1.2732453833443E+15
Volume
3.4176844739306E+22
Surface area
5.0929815333772E+15
Circumference
126491396.42729
Perimeter
80526924
Area
405286593056361
Diagonal
28470567.014247
Surface area
2431719558338166
Volume
8.1591206693171E+21
Space diagonal
34869180.936309
Perimeter
60395193
Area
1.7549424270003E+14
Altitude
17434590.468155
Surface area
1.7549424270003E+14
Volume
9.6156159229891E+20
Height
9490189.004749