21031513 is an odd 8-digits composite number following 21031512
and preceding 21031514 . In scientific notation, it is written as 2.1031513 × 10^7.
The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors.
There are 20193264 positive integers (up to 21031513) that are relatively prime to 21031513.
21031513 has 8 divisors, whose sum is 21886848
The reverse of 21031513 is 31513012
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million thirty-one thousand five hundred thirteen
Scientific notation
2.1031513 × 10^7
Engineering notation
2.1031513 × 10^6
Prime Factorization
53 × 47 × 8443
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031513
Product of the distinct prime numbers
The prime factorization of 21031513 is 53 × 47 × 8443.
Since it has a total of 3 prime factors.
10 , 3 , 53 , 23 , 929 , 699 , 8779 , 6744 , 58298 , 636 , 111678 , 671637 , 6429694 , 9001655 , 52390906 , 38501812 , 612167709 , 835575696 , 525964817 , 5895646453
n×2
42063026
n×3
63094539
n×4
84126052
n×5
105157565
n÷2
10515756.5
n÷3
7010504.3333333
n÷3
5257878.25
n÷5
4206302.6
n2
442324539069169
n3
9.3027542936522E+21
n4
1.9565099786275E+29
n5
4.1148365050135E+36
2 √n
4586.0127561968
3 √n
276.03035180456
4 √n
67.720105996645
5 √n
29.145674029311
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
-21031512
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 21031513 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031513) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101001011001
3
Ternary
1110120111210221
4
Quaternary
1100032221121
5
Quinary
20341002023
6
Senary
2030440041
8
Octal
120165131
10
Decimal
21031513
12
Duodecimal
7063021
16
Hexadecimal
140ea59
20
Vigesimal
6b8ifd
36
Base36
cis0p
md5
f9bb65fdebbd98a1b1f053c5dfe498f9
sha1
ac0cd7fa75cc93d537de423b00a0579f43ee389d
sha256
7ca18e49c97a4a0b72eac88fd0ecef364bc9fb62e92d19a1cd990b92bef8ed5c
sha512
6c746bc53897ceb7fea77dc4fe913f7cd3fadaf3002460fe2313481209f31c3937bf55fbc0c62d5d4ebc84a03fb6eacf072ff4aad28f85996a5c19c772b6282e
ripemd-160
bce512ade99d4cc83108fcf14542dd030dbf1a7d
Diameter
42063026
Circumference
132144893.46936
Area
1.3896035224422E+15
Volume
3.8967286062785E+22
Surface area
5.5584140897688E+15
Circumference
132144893.46936
Perimeter
84126052
Area
442324539069169
Diagonal
29743050.921826
Surface area
2653947234415014
Volume
9.3027542936522E+21
Space diagonal
36427649.076045
Perimeter
63094539
Area
1.9153214377557E+14
Altitude
18213824.538023
Surface area
1.9153214377557E+14
Volume
1.096340107459E+21
Height
9914350.3072754