31998971 is an odd 8-digits composite number following 31998970
and preceding 31998972 . In scientific notation, it is written as 3.1998971 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 31639344 positive integers (up to 31998971) that are relatively prime to 31998971.
31998971 has 4 divisors, whose sum is 32358600
The reverse of 31998971 is 17989913
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
thirty-one million nine hundred ninety-eight thousand nine hundred seventy-one
Scientific notation
3.1998971 × 10^7
Engineering notation
3.1998971 × 10^6
Prime Factorization
89 × 359539
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31998971
Product of the distinct prime numbers
The prime factorization of 31998971 is 89 × 359539.
Since it has a total of 2 prime factors.
8 , 3 , 11 , 90 , 164 , 965 , 2727 , 4556 , 80749 , 91852 , 265492 , 534652 , 4807752 , 1715125 , 63298102 , 76858549 , 361151859 , 351418507 , 7636749458 , 6134479379
n×2
63997942
n×3
95996913
n×4
127995884
n×5
159994855
n÷2
15999485.5
n÷3
10666323.666667
n÷3
7999742.75
n÷5
6399794.2
n2
1023934145058841
n3
3.2764839013648E+22
n4
1.0484411334174E+30
n5
3.354903742343E+37
2 √n
5656.7632971515
3 √n
317.47680736616
4 √n
75.211457219971
5 √n
31.697659989713
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31998970
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31998971 can be divided by 4 positive divisors.
The sum of these divisors (counting 31998971) is 1, the average is 0.25.
Base
System
Value
2
Binary
1111010000100001111111011
3
Ternary
2020012201100002
4
Quaternary
1322010033323
5
Quinary
31142431341
6
Senary
3101503215
8
Octal
172041773
10
Decimal
31998971
12
Duodecimal
a871b0b
16
Hexadecimal
1e843fb
20
Vigesimal
9jjh8b
36
Base36
j1ukb
md5
9fe5152eed302c527febca584495ed7a
sha1
044fe3b7159bfc6f8d0fd8ace9bb7db3395b84dd
sha256
627a915b407a2a4494112abbefbf067771c72ee5d367610f55313e36090edc61
sha512
32a65fd267e799717a2abddf8b29d8c31413a033cee711e9b00521f43d3dbcd82ced2fb966279f27f6f6136900dc350653cce8aa8b171c7980d0dcc83b6a6922
ripemd-160
3b38a63aa4e8f743bd8f7daf335c81f52458ec39
Diameter
63997942
Circumference
201055464.43207
Area
3.2167839878766E+15
Volume
1.3724503672177E+23
Surface area
1.2867135951506E+16
Circumference
201055464.43207
Perimeter
127995884
Area
1023934145058841
Diagonal
45253378.770183
Surface area
6143604870353046
Volume
3.2764839013648E+22
Space diagonal
55423843.561923
Perimeter
95996913
Area
4.4337649071163E+14
Altitude
27711921.780962
Surface area
4.4337649071163E+14
Volume
3.861373308506E+21
Height
15084459.590061