20131908 is an even 8-digits composite number following 20131907
and preceding 20131909 . In scientific notation, it is written as 2.0131908 × 10^7.
The sum of its digits is 24. It has a total of 5 prime factors and 24 positive divisors.
There are 6615840 positive integers (up to 20131908) that are relatively prime to 20131908.
20131908 has 24 divisors, whose sum is 47638080
The reverse of 20131908 is 80913102
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred thirty-one thousand nine hundred eight
Scientific notation
2.0131908 × 10^7
Engineering notation
2.0131908 × 10^6
Prime Factorization
2 × 2 × 3 × 71 × 23629
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10065954
Product of the distinct prime numbers
The prime factorization of 20131908 is 2 × 2 × 3 × 71 × 23629.
Since it has a total of 5 prime factors.
5 , 10 , 18 , 82 , 523 , 889 , 7688 , 2255 , 71203 , 36856 , 673404 , 632704 , 2755268 , 6269840 , 70617431 , 4088802 , 207261909 , 635174164 , 2830680979 , 2601600497
n×2
40263816
n×3
60395724
n×4
80527632
n×5
100659540
n÷2
10065954
n÷3
6710636
n÷3
5032977
n÷5
4026381.6
n2
405293719720464
n3
8.1593358783902E+21
n4
1.6426299924485E+29
n5
3.3069275886014E+36
2 √n
4486.8594807504
3 √n
272.03721016309
4 √n
66.984024071046
5 √n
28.891958835204
1 , 2 , 3 , 4 , 6 , 12 , 71 , 142 , 213 , 284 , 426 , 852 , 23629 , 47258 , 70887 , 94516 , 141774 , 283548 , 1677659 , 3355318 , 5032977 , 6710636 , 10065954 , 20131908
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
-20131907
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 20131908 can be divided by 24 positive divisors.
The sum of these divisors (counting 20131908) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100110011000001000100
3
Ternary
1101212210210020
4
Quaternary
1030303001010
5
Quinary
20123210113
6
Senary
1555255140
8
Octal
114630104
10
Decimal
20131908
12
Duodecimal
68aa4b0
16
Hexadecimal
1333044
20
Vigesimal
65g9f8
36
Base36
bzhvo
md5
6d7d1445051e9b99fcfb44c1b793af15
sha1
d67afb7f682070aa1e4b8723ae2a8ca6a2551b25
sha256
767cea32bcfacac2ad23059a6ffcaaa6a61606500e4ef8a50d323ceedf146988
sha512
71a21319f92cac8b0d178140b2bf605797a0d7ce6760cdfaa9d90aec6526b42b85f19ca5957c87c0875774bf74e98d3c0835950f3e556bd8796b45421634f4ef
ripemd-160
190387e80663c0ad8ec2b3263e904926a90cb950
Diameter
40263816
Circumference
126492508.55109
Area
1.2732677724199E+15
Volume
3.4177746204963E+22
Surface area
5.0930710896796E+15
Circumference
126492508.55109
Perimeter
80527632
Area
405293719720464
Diagonal
28470817.330047
Surface area
2431762318322784
Volume
8.1593358783902E+21
Space diagonal
34869487.509302
Perimeter
60395724
Area
1.7549732863611E+14
Altitude
17434743.754651
Surface area
1.7549732863611E+14
Volume
9.615869549314E+20
Height
9490272.4433491