15721142 is an even 8-digits composite number following 15721141
and preceding 15721143 . In scientific notation, it is written as 1.5721142 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 7840944 positive integers (up to 15721142) that are relatively prime to 15721142.
15721142 has 8 divisors, whose sum is 23640600
The reverse of 15721142 is 24112751
Previous prime number is 409
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
fifteen million seven hundred twenty-one thousand one hundred forty-two
Scientific notation
1.5721142 × 10^7
Engineering notation
1.5721142 × 10^6
Prime Factorization
2 × 409 × 19219
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
15721142
Product of the distinct prime numbers
The prime factorization of 15721142 is 2 × 409 × 19219.
Since it has a total of 3 prime factors.
8 , 10 , 77 , 70 , 507 , 246 , 3406 , 6263 , 85065 , 69773 , 442133 , 695762 , 6448275 , 5305489 , 17996733 , 65993958 , 808208888 , 683827113 , 8852355234 , 2074043144
n×2
31442284
n×3
47163426
n×4
62884568
n×5
78605710
n÷2
7860571
n÷3
5240380.6666667
n÷3
3930285.5
n÷5
3144228.4
n2
247154305784164
n3
3.8855479371443E+21
n4
6.1085250867652E+28
n5
9.6032990299598E+35
2 √n
3964.9895334036
3 √n
250.51170923337
4 √n
62.968162855554
5 √n
27.497728402836
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
-15721141
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 15721142 can be divided by 8 positive divisors.
The sum of these divisors (counting 15721142) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011111110001010110110
3
Ternary
1002120201100112
4
Quaternary
323332022312
5
Quinary
13011034032
6
Senary
1320543022
8
Octal
73761266
10
Decimal
15721142
12
Duodecimal
5321a72
16
Hexadecimal
efe2b6
20
Vigesimal
4i52h2
36
Base36
9cyie
md5
58d182e28c21ac8c6ffeeafccdf9b27f
sha1
b35ac31d027e6b01e67aebd721e0137444f00384
sha256
8e5a177ae402c05739e260ac32588b5b61f59ff50a50ee482053ce8b8015903a
sha512
1b714cdd729c27dd073b838c34614d31586c42eadca49660ac7ee93feeb9dd1e4fd3bc564c196138593d303e891f2f7bfe53d1de1c8cf4cdc8f350c47f1d8b7b
ripemd-160
6cd9419eb4d70069d2d5bfc75c15b22e9bf1fe14
Diameter
31442284
Circumference
98778848.426484
Area
7.7645815135461E+14
Volume
1.6275745139338E+22
Surface area
3.1058326054185E+15
Circumference
98778848.426484
Perimeter
62884568
Area
247154305784164
Diagonal
22233052.232393
Surface area
1482925834704984
Volume
3.8855479371443E+21
Space diagonal
27229816.697005
Perimeter
47163426
Area
1.070209537319E+14
Altitude
13614908.348502
Surface area
1.070209537319E+14
Volume
4.5791621583002E+20
Height
7411017.4107978