21431331 is an odd 8-digits composite number following 21431330
and preceding 21431332 . In scientific notation, it is written as 2.1431331 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 13665960 positive integers (up to 21431331) that are relatively prime to 21431331.
21431331 has 8 divisors, whose sum is 28713984
The reverse of 21431331 is 13313412
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million four hundred thirty-one thousand three hundred thirty-one
Scientific notation
2.1431331 × 10^7
Engineering notation
2.1431331 × 10^6
Prime Factorization
207 × 3 × 34511
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21431331
Product of the distinct prime numbers
The prime factorization of 21431331 is 207 × 3 × 34511.
Since it has a total of 3 prime factors.
7 , 9 , 61 , 98 , 727 , 917 , 7060 , 3043 , 19518 , 87529 , 987775 , 174344 , 2633827 , 9542403 , 61427056 , 19256623 , 67500161 , 728386467 , 7290440233 , 3309937823
n×2
42862662
n×3
64293993
n×4
85725324
n×5
107156655
n÷2
10715665.5
n÷3
7143777
n÷3
5357832.75
n÷5
4286266.2
n2
459301948431561
n3
9.8434520857817E+21
n4
2.1095827983303E+29
n5
4.5211167222923E+36
2 √n
4629.3985570482
3 √n
277.76853479763
4 √n
68.039683693035
5 √n
29.255655193615
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
-21431330
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 21431331 can be divided by 8 positive divisors.
The sum of these divisors (counting 21431331) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110000010000100011
3
Ternary
1111022211021000
4
Quaternary
1101300100203
5
Quinary
20441300311
6
Senary
2043203043
8
Octal
121602043
10
Decimal
21431331
12
Duodecimal
7216483
16
Hexadecimal
1470423
20
Vigesimal
6dii6b
36
Base36
crcir
md5
19fbf6cb37bab77424e7bd26868a29a6
sha1
e0015cb70b5a96b40669dbd59ada966acc7db5b7
sha256
1ad7cf8e8589806d048980803401412ff973bab3afb88551d8bfe58c6fe5fc5a
sha512
8716a47affdc0ad5409d56a3bd0fb2c01deb00d02a23726db5aa1e7724ca2ca5b0cbe353536ff656faa3688b29717eb97a70aa446a9ba89417c64d3f38b1a1b0
ripemd-160
0e09dd8485c4d28852cd0d352d5a56c5f53fc3fb
Diameter
42862662
Circumference
134657024.0525
Area
1.4429396269721E+15
Volume
4.1232155678207E+22
Surface area
5.7717585078883E+15
Circumference
134657024.0525
Perimeter
85725324
Area
459301948431561
Diagonal
30308478.959907
Surface area
2755811690589366
Volume
9.8434520857817E+21
Space diagonal
37120154.165826
Perimeter
64293993
Area
1.9888357767471E+14
Altitude
18560077.082913
Surface area
1.9888357767471E+14
Volume
1.1600619533569E+21
Height
10102826.319969