20157431 is an odd 8-digits composite number following 20157430
and preceding 20157432 . In scientific notation, it is written as 2.0157431 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 17251128 positive integers (up to 20157431) that are relatively prime to 20157431.
20157431 has 8 divisors, whose sum is 23072640
The reverse of 20157431 is 13475102
Previous prime number is 787
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred fifty-seven thousand four hundred thirty-one
Scientific notation
2.0157431 × 10^7
Engineering notation
2.0157431 × 10^6
Prime Factorization
7 × 787 × 3659
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20157431
Product of the distinct prime numbers
The prime factorization of 20157431 is 7 × 787 × 3659.
Since it has a total of 3 prime factors.
2 , 10 , 10 , 18 , 635 , 82 , 4512 , 6272 , 93995 , 36631 , 59791 , 543461 , 9726834 , 2309375 , 82198916 , 83138917 , 868148116 , 2814856 , 9590841316 , 5545485339
n×2
40314862
n×3
60472293
n×4
80629724
n×5
100787155
n÷2
10078715.5
n÷3
6719143.6666667
n÷3
5039357.75
n÷5
4031486.2
n2
406322024519761
n3
8.1904081730374E+21
n4
1.6509758760984E+29
n5
3.3279432305117E+36
2 √n
4489.7027741266
3 √n
272.15212349053
4 √n
67.005244377784
5 √n
28.899280901229
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
-20157430
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 20157431 can be divided by 8 positive divisors.
The sum of these divisors (counting 20157431) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001001111110111
3
Ternary
1101221002210112
4
Quaternary
1030321033313
5
Quinary
20130014211
6
Senary
2000013235
8
Octal
114711767
10
Decimal
20157431
12
Duodecimal
690121b
16
Hexadecimal
13393f7
20
Vigesimal
65jdbb
36
Base36
c01kn
md5
aaf8089604a9afff25c0d4624fe7adc2
sha1
e0ad29de8a1104dcef1823bd0665fc111f6f0864
sha256
eddf7425811574b9b6439bbeaa44e90f8273b1c0d61ff01603886ac47f4a442a
sha512
51eca9f320781bcacdb02acb9dbb3807f378b58e6552bf53acc3e46c464785b53c058a2187d048d1f9b4a3401bbdd32918587e6b1d164564a7cf790ecb101c9d
ripemd-160
0bac86ef93785e3b13c6e5f80a7042d7c0013c87
Diameter
40314862
Circumference
126652874.28969
Area
1.276498287223E+15
Volume
3.4307901528421E+22
Surface area
5.1059931488921E+15
Circumference
126652874.28969
Perimeter
80629724
Area
406322024519761
Diagonal
28506912.3028
Surface area
2437932147118566
Volume
8.1904081730374E+21
Space diagonal
34913694.642064
Perimeter
60472293
Area
1.7594259767562E+14
Altitude
17456847.321032
Surface area
1.7594259767562E+14
Volume
9.6524885997341E+20
Height
9502304.1009333