20171931 is an odd 8-digits composite number following 20171930
and preceding 20171932 . In scientific notation, it is written as 2.0171931 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 12413472 positive integers (up to 20171931) that are relatively prime to 20171931.
20171931 has 8 divisors, whose sum is 28964880
The reverse of 20171931 is 13917102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred seventy-one thousand nine hundred thirty-one
Scientific notation
2.0171931 × 10^7
Engineering notation
2.0171931 × 10^6
Prime Factorization
13 × 3 × 517229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20171931
Product of the distinct prime numbers
The prime factorization of 20171931 is 13 × 3 × 517229.
Since it has a total of 3 prime factors.
1 , 4 , 32 , 87 , 420 , 90 , 6549 , 7990 , 40948 , 87804 , 679024 , 526036 , 9442481 , 1621572 , 50618645 , 8126937 , 642683355 , 155284595 , 4654649355 , 1913619600
n×2
40343862
n×3
60515793
n×4
80687724
n×5
100859655
n÷2
10085965.5
n÷3
6723977
n÷3
5042982.75
n÷5
4034386.2
n2
406906800268761
n3
8.2080958984522E+21
n4
1.6557314410496E+29
n5
3.3399300383383E+36
2 √n
4491.3172900609
3 √n
272.21736427692
4 √n
67.017290978231
5 √n
28.903437373873
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
-20171930
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 20171931 can be divided by 8 positive divisors.
The sum of these divisors (counting 20171931) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111100110010011011
3
Ternary
1101221211200120
4
Quaternary
1030330302123
5
Quinary
20131000211
6
Senary
2000204323
8
Octal
114746233
10
Decimal
20171931
12
Duodecimal
69096a3
16
Hexadecimal
133cc9b
20
Vigesimal
6619gb
36
Base36
c0crf
md5
2fe4d3ea0d9b163d1b3b9b80ef6526db
sha1
012739a4fc418fde3e4f051ddec817cf32050adc
sha256
bc2b3dcef3a1883a89b30d14af8cea17600503c97acfc1522a1f8b35eff61150
sha512
c84e245d034c224b51280d7d78c802b87d18bada93d523d6ac296abe0ed7b199d660d408a39fc564b23fd2e3e7bea4ba0c4c3d9f329ba2c7e70bf21ace75c5e6
ripemd-160
6097dc4b668fa7e7b43194060d5cf3e7b2996b57
Diameter
40343862
Circumference
126743980.47664
Area
1.2783354144201E+15
Volume
3.4381991699384E+22
Surface area
5.1133416576803E+15
Circumference
126743980.47664
Perimeter
80687724
Area
406906800268761
Diagonal
28527418.399454
Surface area
2441440801612566
Volume
8.2080958984522E+21
Space diagonal
34938809.378774
Perimeter
60515793
Area
1.7619581300269E+14
Altitude
17469404.689387
Surface area
1.7619581300269E+14
Volume
9.6733337840418E+20
Height
9509139.4664848