20129531 is an odd 8-digits composite number following 20129530
and preceding 20129532 . In scientific notation, it is written as 2.0129531 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 17962560 positive integers (up to 20129531) that are relatively prime to 20129531.
20129531 has 16 divisors, whose sum is 22448640
The reverse of 20129531 is 13592102
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-nine thousand five hundred thirty-one
Scientific notation
2.0129531 × 10^7
Engineering notation
2.0129531 × 10^6
Prime Factorization
19 × 73 × 23 × 631
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20129531
Product of the distinct prime numbers
The prime factorization of 20129531 is 19 × 73 × 23 × 631.
Since it has a total of 4 prime factors.
2 , 1 , 62 , 67 , 887 , 855 , 3651 , 6330 , 82402 , 49758 , 607712 , 646764 , 4513875 , 589357 , 49532220 , 36078757 , 869488690 , 302523892 , 9243945407 , 9473174028
n×2
40259062
n×3
60388593
n×4
80518124
n×5
100647655
n÷2
10064765.5
n÷3
6709843.6666667
n÷3
5032382.75
n÷5
4025906.2
n2
405198018279961
n3
8.156446070105E+21
n4
1.6418543401801E+29
n5
3.3049757838139E+36
2 √n
4486.5945883264
3 √n
272.02650314847
4 √n
66.982046761251
5 √n
28.891276540909
1 , 19 , 23 , 73 , 437 , 631 , 1387 , 1679 , 11989 , 14513 , 31901 , 46063 , 275747 , 875197 , 1059449 , 20129531
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20129530
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20129531 can be divided by 16 positive divisors.
The sum of these divisors (counting 20129531) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110010011011111011
3
Ternary
1101212200112012
4
Quaternary
1030302123323
5
Quinary
20123121111
6
Senary
1555240135
8
Octal
114623373
10
Decimal
20129531
12
Duodecimal
68a904b
16
Hexadecimal
13326fb
20
Vigesimal
65g3gb
36
Base36
bzg1n
md5
a5dde70e08c63072312f5bf5e089be09
sha1
8ef7b90477b74cd34530151c033141a2fdda7ab7
sha256
5f8b677c808bb06a9e6db279bf7a563dc2ea647b024c6435e9bda2f7717aa10c
sha512
fd2724a2ea80aed3865acade44c71aa9e4e2e5d1fcbffff3c95c9c53c3d8b333ee4b8ed32d4fe9d65da471821f566e496aaafe00b97e36ab0a7b5f582ce79ef3
ripemd-160
6443361934c166d8222f37b08b0cc304cd2ca2d2
Diameter
40259062
Circumference
126477573.41962
Area
1.2729671174775E+15
Volume
3.4165641404324E+22
Surface area
5.0918684699099E+15
Circumference
126477573.41962
Perimeter
80518124
Area
405198018279961
Diagonal
28467455.74441
Surface area
2431188109679766
Volume
8.156446070105E+21
Space diagonal
34865370.424533
Perimeter
60388593
Area
1.7545588869678E+14
Altitude
17432685.212266
Surface area
1.7545588869678E+14
Volume
9.6124638775894E+20
Height
9489151.9148032